From: Kevin Day <Kevin@kevux.org>
Date: Sat, 28 Jun 2025 03:38:35 +0000 (-0500)
Subject: Cleanup: Apply new script practices.
X-Git-Tag: 0.6.14~3
X-Git-Url: https://www.git.kevux.org/?a=commitdiff_plain;h=f6868168d36a5fce97f92849ba21e5faa51b7845;p=fll

Cleanup: Apply new script practices.

This is essentially a backport of the 0.7 commit f856496d258a223eb7eb5f8fe645297e8af27b46.

Be more consistent about wrapping all variables in brackets.
This helps make the code more consistent and also more compatible with other interpreters like ZSH.

Don't use echo pipe syntax and instead use "<<<" redirection pipe syntax for passing variables to program calls.

The grep commands should use either `-sho` or `-shoP`.

Add missing 'unset main' calls in some scripts.

Several of the level_3 program scripts are skipped from these changes.
I simply did not want to spend the time migrating those.
---

diff --git a/build/scripts/bootstrap-example.sh b/build/scripts/bootstrap-example.sh
index 282d986..a34963f 100644
--- a/build/scripts/bootstrap-example.sh
+++ b/build/scripts/bootstrap-example.sh
@@ -38,7 +38,7 @@
 # This is not intended to provide any extensive or thorough error handling.
 #
 # This script can also be run under zsh rather than bash by setting the environment variable SHELL_ENGINE to "zsh", such as:
-#   SHELL_ENGINE="zsh" zsh ./bootstrap-example.sh --help
+#   SHELL_ENGINE="zsh" zsh ./bootstrap-example.sh
 #
 
 main() {
@@ -84,7 +84,7 @@ main() {
   j=
   p=
 
-  while [[ ${i} -le $# ]] ; do
+  while [[ ${i} -le ${#} ]] ; do
 
     if [[ ${SHELL_ENGINE} == "zsh" ]] ; then
       p=${(P)i}
@@ -131,7 +131,7 @@ main() {
     elif [[ ${p} == "-w" || ${p} == "--work" ]] ; then
       let i++
 
-      if [[ ${i} -le $# ]] ; then
+      if [[ ${i} -le ${#} ]] ; then
         path_work=${p}
       fi
     fi
@@ -228,7 +228,7 @@ boostrap_process() {
   fi
 
   # The following are examples on building individual projects.
-  for mode_part in fake firewutf8 ; do
+  for mode_part in fake firewall utf8 ; do
     if [[ ${1} == "${mode_part}-individual" || ${1} == "${mode_part}-level" || ${1} == "${mode_part}-monolithic" || ${1} == "${mode_part}-stand_alone" ]] ; then
       break;
     fi
@@ -329,7 +329,7 @@ boostrap_process() {
           fi
         done
 
-        if [[ $skip != "" ]] ; then
+        if [[ ${skip} != "" ]] ; then
           echo "Skipping program: '${i}'."
           echo
 
@@ -358,7 +358,7 @@ boostrap_process() {
               if [[ ${?} -ne 0 ]] ; then return 1 ; fi
             fi
           done
-       fi
+        fi
       done
     else
       echo
diff --git a/build/scripts/bootstrap.sh b/build/scripts/bootstrap.sh
index 8219279..d807f75 100644
--- a/build/scripts/bootstrap.sh
+++ b/build/scripts/bootstrap.sh
@@ -81,8 +81,8 @@ bootstrap_main() {
   local enable_shared=
   local enable_static=
 
-  if [[ $# -gt 0 ]] ; then
-    t=$#
+  if [[ ${#} -gt 0 ]] ; then
+    t=${#}
 
     while [[ ${i} -lt ${t} ]] ; do
       let i=${i}+1
@@ -173,16 +173,16 @@ bootstrap_main() {
         elif [[ ${grab_next} == "settings_name" ]] ; then
           settings_name="${p}"
         elif [[ ${grab_next} == "path_build" ]] ; then
-          path_build=$(echo ${p} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+          path_build=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${p})
           override_path_build="y"
         elif [[ ${grab_next} == "path_data" ]] ; then
-          path_data=$(echo ${p} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+          path_data=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${p})
           override_path_data="y"
         elif [[ ${grab_next} == "path_sources" ]] ; then
-          path_sources=$(echo ${p} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+          path_sources=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${p})
           override_path_sources="y"
         elif [[ ${grab_next} == "path_work" ]] ; then
-          path_work=$(echo ${p} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+          path_work=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${p})
           override_path_work="y"
         fi
 
@@ -194,7 +194,7 @@ bootstrap_main() {
   fi
 
   # If the settings_name has a directory separator, then assume it is a path to the settings file.
-  if [[ $(echo ${settings_name} | grep -s -o '/') == "" ]] ; then
+  if [[ $(grep -sho '/' <<< ${settings_name}) == "" ]] ; then
     settings_file="${path_data}build/${settings_name}"
   else
     settings_file="${settings_name}"
@@ -229,7 +229,7 @@ bootstrap_main() {
   # FSS and Featurless Make supports more flexible mode names, but for the purpose of this bootstrap script and avoiding potential problems, keep it simple.
   if [[ ${modes} != "" ]] ; then
     for mode in ${modes} ; do
-      if [[ $(echo "${mode}" | grep -s -o "[^_[:alnum:]+-]") != "" ]] ; then
+      if [[ $(grep -sho '[^_[:alnum:]+-]' <<< ${mode}) != "" ]] ; then
         if [[ ${verbosity} != "quiet" ]] ; then
           echo -e "${c_error}ERROR: The mode ${c_notice}${mode}${c_error} includes invalid characters, only alphanumeric, underscore, minus, and plus are allowed.${c_reset}"
         fi
@@ -809,11 +809,11 @@ bootstrap_load_settings() {
 
   # Get available modes.
   if [[ ${modes_available} == "" ]] ; then
-    modes_available=$(grep -s -o "^[[:space:]]*modes[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*modes\>||" -e 's|^[[:space:]]*||')
+    modes_available=$(grep -sho "^[[:space:]]*modes[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*modes\>||" -e 's|^[[:space:]]*||')
   fi
 
   # Get default modes.
-  modes_default=$(grep -s -o "^[[:space:]]*modes_default[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*modes_default\>||" -e 's|^[[:space:]]*||')
+  modes_default=$(grep -sho "^[[:space:]]*modes_default[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*modes_default\>||" -e 's|^[[:space:]]*||')
 
   # Use default modes if no mode is explicitly provided.
   if [[ ${modes} == "" ]] ; then
@@ -836,8 +836,8 @@ bootstrap_load_settings() {
         variables[${key}]="no"
       fi
     else
-      if [[ $(grep -s -o "^[[:space:]]*${i}[[:space:]].*\$" ${settings_file}) != "" ]] ; then
-        value=$(grep -s -o "^[[:space:]]*${i}[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*${i}\>||" -e 's|^[[:space:]]*||')
+      if [[ $(grep -sho "^[[:space:]]*${i}[[:space:]].*\$" ${settings_file}) != "" ]] ; then
+        value=$(grep -sho "^[[:space:]]*${i}[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*${i}\>||" -e 's|^[[:space:]]*||')
         variables[${key}]="${value}"
 
         key=
@@ -845,7 +845,7 @@ bootstrap_load_settings() {
         if [[ ${key} != "" ]] ; then
           variables[${key}]="yes"
         fi
-      elif [[ $(grep -s -o "^[[:space:]]*${i}\$" ${settings_file}) != "" ]] ; then
+      elif [[ $(grep -sho "^[[:space:]]*${i}\$" ${settings_file}) != "" ]] ; then
         variables[${key}]=""
 
         key=
@@ -879,8 +879,8 @@ bootstrap_load_settings() {
         variables[${key}]="no"
       fi
     else
-      if [[ $(grep -s -o "^[[:space:]]*${i}[[:space:]].*\$" ${settings_file}) != "" ]] ; then
-        value=$(grep -s -o "^[[:space:]]*${i}[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*${i}\>||" -e 's|^[[:space:]]*||')
+      if [[ $(grep -sho "^[[:space:]]*${i}[[:space:]].*\$" ${settings_file}) != "" ]] ; then
+        value=$(grep -sho "^[[:space:]]*${i}[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*${i}\>||" -e 's|^[[:space:]]*||')
         variables[${key}]="${variables[${key}]}${value} "
 
         key=
@@ -888,7 +888,7 @@ bootstrap_load_settings() {
         if [[ ${key} != "" ]] ; then
           variables[${key}]="yes"
         fi
-      elif [[ $(grep -s -o "^[[:space:]]*${i}\$" ${settings_file}) != "" ]] ; then
+      elif [[ $(grep -sho "^[[:space:]]*${i}\$" ${settings_file}) != "" ]] ; then
         variables[${key}]=""
 
         key=
@@ -932,8 +932,8 @@ bootstrap_load_settings_mode() {
         fi
       else
 
-        if [[ $(grep -s -o "^[[:space:]]*${i}-${m}[[:space:]].*\$" ${settings_file}) != "" ]] ; then
-          value=$(grep -s -o "^[[:space:]]*${i}-${m}[[:space:]].*\$" ${settings_file} | sed -e "H;/${i}-${m}/h;\$!d;x" | sed -e "s|^[[:space:]]*${i}-${m}\>||" -e 's|^[[:space:]]*||')
+        if [[ $(grep -sho "^[[:space:]]*${i}-${m}[[:space:]].*\$" ${settings_file}) != "" ]] ; then
+          value=$(grep -sho "^[[:space:]]*${i}-${m}[[:space:]].*\$" ${settings_file} | sed -e "H;/${i}-${m}/h;\$!d;x" | sed -e "s|^[[:space:]]*${i}-${m}\>||" -e 's|^[[:space:]]*||')
           variables[${key}]="${value}"
 
           key=
@@ -941,7 +941,7 @@ bootstrap_load_settings_mode() {
           if [[ ${key} != "" ]] ; then
             variables[${key}]="yes"
           fi
-        elif [[ $(grep -s -o "^[[:space:]]*${i}-${m}\$" ${settings_file}) != "" ]] ; then
+        elif [[ $(grep -sho "^[[:space:]]*${i}-${m}\$" ${settings_file}) != "" ]] ; then
           variables[${key}]=""
 
           key=
@@ -975,8 +975,8 @@ bootstrap_load_settings_mode() {
           variables[${key}]="no"
         fi
       else
-        if [[ $(grep -s -o "^[[:space:]]*${i}-${m}[[:space:]].*\$" ${settings_file}) != "" ]] ; then
-          value=$(grep -s -o "^[[:space:]]*${i}-${m}[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*${i}-${m}\>||" -e 's|^[[:space:]]*||')
+        if [[ $(grep -sho "^[[:space:]]*${i}-${m}[[:space:]].*\$" ${settings_file}) != "" ]] ; then
+          value=$(grep -sho "^[[:space:]]*${i}-${m}[[:space:]].*\$" ${settings_file} | sed -e "s|^[[:space:]]*${i}-${m}\>||" -e 's|^[[:space:]]*||')
           variables[${key}]="${variables[${key}]}${value} "
 
           key=
@@ -984,7 +984,7 @@ bootstrap_load_settings_mode() {
           if [[ ${key} != "" ]] ; then
             variables[${key}]="yes"
           fi
-        elif [[ $(grep -s -o "^[[:space:]]*${i}-${m}\$" ${settings_file}) != "" ]] ; then
+        elif [[ $(grep -sho "^[[:space:]]*${i}-${m}\$" ${settings_file}) != "" ]] ; then
           variables[${key}]=""
 
           key=
@@ -1445,7 +1445,7 @@ bootstrap_operation_build() {
         fi
 
         sources="${path_sources_object}${path_language}${i} "
-        n=$(echo $i | sed -e 's|\.[^\.]*$||')
+        n=$(sed -e 's|\.[^\.]*$||' <<< ${i})
 
         if [[ ${verbosity} == "verbose" ]] ; then
           echo ${build_compiler} ${sources} -c -o ${path_build}objects/${path_object_shared}${n}.o ${arguments_shared} ${arguments_include} ${libraries} ${libraries_shared} ${flags} ${flags_shared} ${flags_object} ${flags_object_shared} ${defines} ${defines_shared} ${defines_object} ${defines_object_shared} ${define_extra}
@@ -1551,7 +1551,7 @@ bootstrap_operation_build() {
         fi
 
         sources="${path_sources_object}${path_language}${i} "
-        n=$(echo $i | sed -e 's|\.[^\.]*$||')
+        n=$(sed -e 's|\.[^\.]*$||' <<< ${i})
 
         if [[ ${verbosity} == "verbose" ]] ; then
           echo ${build_compiler} ${sources} -c -o ${path_build}objects/${path_object_static}${n}.o ${arguments_static} ${arguments_include} ${libraries} ${libraries_static} ${flags} ${flags_static} ${flags_object} ${flags_object_static} ${defines} ${defines_static} ${defines_object} ${defines_object_static} ${define_extra}
@@ -2166,7 +2166,7 @@ bootstrap_operation_build_prepare_headers() {
   fi
 
   if [[ ${path_headers} != "" ]] ; then
-    path_headers=$(echo ${path_headers} | sed -e 's|/*$|/|')
+    path_headers=$(sed -e 's|/*$|/|' <<< ${path_headers})
   fi
 }
 
@@ -2293,7 +2293,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_sources} != "" ]] ; then
-    path_sources=$(echo ${path_sources} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_sources=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_sources})
   fi
 
   bootstrap_id "path_sources_object-mode"
@@ -2307,7 +2307,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_sources_object} != "" ]] ; then
-    path_sources_object=$(echo ${path_sources_object} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_sources_object=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_sources_object})
   fi
 
   bootstrap_id "path_headers-mode"
@@ -2316,7 +2316,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_headers} != "" ]] ; then
-    path_headers=$(echo ${path_headers} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_headers=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_headers})
   fi
 
   bootstrap_id "has_path_standard-mode"
@@ -2338,7 +2338,7 @@ bootstrap_operation_build_prepare_paths() {
     fi
 
     if [[ ${path_language} != "" ]] ; then
-      path_language=$(echo ${path_language} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+      path_language=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_language})
     fi
   fi
 
@@ -2348,7 +2348,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_library} != "" ]] ; then
-    path_object_library=$(echo ${path_object_library} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_library=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_library})
   fi
 
   bootstrap_id "path_object_program-mode"
@@ -2357,7 +2357,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_program} != "" ]] ; then
-    path_object_program=$(echo ${path_object_program} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_program=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_program})
   fi
 
   bootstrap_id "path_library_script-mode"
@@ -2366,7 +2366,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_library_script} != "" ]] ; then
-    path_library_script=$(echo ${path_library_script} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_library_script=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_library_script})
   fi
 
   bootstrap_id "path_library_shared-mode"
@@ -2375,7 +2375,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_library_shared} != "" ]] ; then
-    path_library_shared=$(echo ${path_library_shared} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_library_shared=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_library_shared})
   fi
 
   bootstrap_id "path_library_static-mode"
@@ -2384,7 +2384,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_library_static} != "" ]] ; then
-    path_library_static=$(echo ${path_library_static} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_library_static=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_library_static})
   fi
 
   bootstrap_id "path_object_library_script-mode"
@@ -2393,7 +2393,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_library_script} != "" ]] ; then
-    path_object_library_script=$(echo ${path_object_library_script} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_library_script=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_library_script})
   fi
 
   bootstrap_id "path_object_library_shared-mode"
@@ -2402,7 +2402,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_library_shared} != "" ]] ; then
-    path_object_library_shared=$(echo ${path_object_library_shared} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_library_shared=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_library_shared})
   fi
 
   bootstrap_id "path_object_library_static-mode"
@@ -2411,7 +2411,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_library_static} != "" ]] ; then
-    path_object_library_static=$(echo ${path_object_library_static} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_library_static=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_library_static})
   fi
 
   bootstrap_id "path_object_program_script-mode"
@@ -2420,7 +2420,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_program_script} != "" ]] ; then
-    path_object_program_script=$(echo ${path_object_program_script} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_program_script=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_program_script})
   fi
 
   bootstrap_id "path_object_program_shared-mode"
@@ -2429,7 +2429,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_program_shared} != "" ]] ; then
-    path_object_program_shared=$(echo ${path_object_program_shared} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_program_shared=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_program_shared})
   fi
 
   bootstrap_id "path_object_program_static-mode"
@@ -2438,7 +2438,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_program_static} != "" ]] ; then
-    path_object_program_static=$(echo ${path_object_program_static} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_program_static=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_program_static})
   fi
 
   bootstrap_id "path_object_script-mode"
@@ -2447,7 +2447,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_script} != "" ]] ; then
-    path_object_script=$(echo ${path_object_script} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_script=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_script})
   fi
 
   bootstrap_id "path_object_shared-mode"
@@ -2456,7 +2456,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_shared} != "" ]] ; then
-    path_object_shared=$(echo ${path_object_shared} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_shared=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_shared})
   fi
 
   bootstrap_id "path_object_static-mode"
@@ -2465,11 +2465,11 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_object_static} != "" ]] ; then
-    path_object_static=$(echo ${path_object_static} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_static=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_static})
   fi
 
   if [[ ${path_object_static} != "" ]] ; then
-    path_object_static=$(echo ${path_object_static} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_object_static=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_object_static})
   fi
 
   bootstrap_id "path_program_script-mode"
@@ -2478,7 +2478,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_program_script} != "" ]] ; then
-    path_program_script=$(echo ${path_program_script} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_program_script=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_program_script})
   fi
 
   bootstrap_id "path_program_shared-mode"
@@ -2487,7 +2487,7 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_program_shared} != "" ]] ; then
-    path_program_shared=$(echo ${path_program_shared} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_program_shared=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_program_shared})
   fi
 
   bootstrap_id "path_program_static-mode"
@@ -2496,11 +2496,11 @@ bootstrap_operation_build_prepare_paths() {
   fi
 
   if [[ ${path_program_static} != "" ]] ; then
-    path_program_static=$(echo ${path_program_static} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_program_static=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_program_static})
   fi
 
   if [[ ${path_program_static} != "" ]] ; then
-    path_program_static=$(echo ${path_program_static} | sed -e 's|//*|/|g' -e 's|/*$|/|')
+    path_program_static=$(sed -e 's|//*|/|g' -e 's|/*$|/|' <<< ${path_program_static})
   fi
 }
 
@@ -2836,7 +2836,7 @@ bootstrap_operation_build_validate_shared_static() {
 bootstrap_operation_build_validate_sources() {
 
   for i in ${sources_script} ; do
-    if [[ ${i} != "$(echo ${i} | sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||')" ]] ; then
+    if [[ ${i} != "$(sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||' <<< ${i})" ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: Cannot Build, invalid build_sources_script path provided: '${i}'.${c_reset}"
       fi
@@ -2846,7 +2846,7 @@ bootstrap_operation_build_validate_sources() {
   done
 
   for i in ${sources_headers} ; do
-    if [[ ${i} != "$(echo ${i} | sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||')" ]] ; then
+    if [[ ${i} != "$(sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||' <<< ${i})" ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: Cannot Build, invalid build_sources_headers path provided: '${i}'.${c_reset}"
       fi
@@ -2856,7 +2856,7 @@ bootstrap_operation_build_validate_sources() {
   done
 
   for i in ${sources_library} ; do
-    if [[ ${i} != "$(echo ${i} | sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||')" ]] ; then
+    if [[ ${i} != "$(sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||' <<< ${i})" ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: Cannot Build, invalid build_sources_library path provided: '${i}'.${c_reset}"
       fi
@@ -2866,7 +2866,7 @@ bootstrap_operation_build_validate_sources() {
   done
 
   for i in ${sources_library_object} ; do
-    if [[ ${i} != "$(echo ${i} | sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||')" ]] ; then
+    if [[ ${i} != "$(sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||' <<< ${i})" ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: Cannot Build, invalid build_sources_library_object path provided: '${i}'.${c_reset}"
       fi
@@ -2876,7 +2876,7 @@ bootstrap_operation_build_validate_sources() {
   done
 
   for i in ${sources_program_object} ; do
-    if [[ ${i} != "$(echo ${i} | sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||')" ]] ; then
+    if [[ ${i} != "$(sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||' <<< ${i})" ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: Cannot Build, invalid build_sources_program_object path provided: '${i}'.${c_reset}"
       fi
@@ -2886,7 +2886,7 @@ bootstrap_operation_build_validate_sources() {
   done
 
   for i in ${sources_program} ; do
-    if [[ ${i} != "$(echo ${i} | sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||')" ]] ; then
+    if [[ ${i} != "$(sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||' <<< ${i})" ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: Cannot Build, invalid build_sources_program path provided: '${i}'.${c_reset}"
       fi
@@ -2896,7 +2896,7 @@ bootstrap_operation_build_validate_sources() {
   done
 
   for i in ${sources_documentation} ; do
-    if [[ ${i} != "$(echo ${i} | sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||')" ]] ; then
+    if [[ ${i} != "$(sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||' <<< ${i})" ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: Cannot Build, invalid build_sources_documentation path provided: '${i}'.${c_reset}"
       fi
@@ -2906,7 +2906,7 @@ bootstrap_operation_build_validate_sources() {
   done
 
   for i in ${sources_setting} ; do
-    if [[ ${i} != "$(echo ${i} | sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||')" ]] ; then
+    if [[ ${i} != "$(sed -e 's|^//*||' -e 's|^\.\.//*||' -e 's|/*$||' <<< ${i})" ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: Cannot Build, invalid build_sources_setting path provided: '${i}'.${c_reset}"
       fi
diff --git a/build/scripts/generate_codepoints_from_digits.sh b/build/scripts/generate_codepoints_from_digits.sh
index fe7d3a4..fc6f9bb 100644
--- a/build/scripts/generate_codepoints_from_digits.sh
+++ b/build/scripts/generate_codepoints_from_digits.sh
@@ -11,14 +11,14 @@
 main() {
   local IFS=$' \t\n' # Prevent IFS exploits by overriding with a local scope.
 
-  local -i first="$1"
-  local -i last="$2"
+  local -i first="${1}"
+  local -i last="${2}"
 
-  while [[ $first -le $last ]] ; do
-    printf "U+%04X\n" $first
+  while [[ ${first} -le ${last} ]] ; do
+    printf "U+%04X\n" ${first}
 
     let first++
   done
 }
 
-main "$1" "$2"
+main "${1}" "${2}"
diff --git a/build/scripts/generate_ctags.sh b/build/scripts/generate_ctags.sh
index c07d81a..64be5e0 100644
--- a/build/scripts/generate_ctags.sh
+++ b/build/scripts/generate_ctags.sh
@@ -48,8 +48,8 @@ main() {
   local verbose=
   local verbose_common=
 
-  if [[ $# -gt 0 ]] ; then
-    t=$#
+  if [[ ${#} -gt 0 ]] ; then
+    t=${#}
 
     while [[ ${i} -lt ${t} ]] ; do
       let i=${i}+1
@@ -106,9 +106,9 @@ main() {
         fi
       else
         if [[ ${grab_next} == "destination" ]] ; then
-          destination=$(echo ${p} | sed -e 's|$|/|' -e 's|//*|/|g')
+          destination=$(sed -e 's|$|/|' -e 's|//*|/|g' <<< ${p})
         elif [[ ${grab_next} == "source" ]] ; then
-          source=$(echo ${p} | sed -e 's|$|/|' -e 's|//*|/|g')
+          source=$(sed -e 's|$|/|' -e 's|//*|/|g' <<< ${p})
         fi
 
         grab_next=
@@ -134,7 +134,7 @@ main() {
     return 0
   fi
 
-  if [[ $(echo "$name" | grep -s -o "/") != "" || ${name} == "" ]] ; then
+  if [[ $(grep -sho "/" <<< ${name}) != "" || ${name} == "" ]] ; then
     if [[ ${verbosity} != "quiet" ]] ; then
       if [[ ${name} == "" ]] ; then
         echo -e "${c_error}ERROR: No ${c_notice}name${c_error} parameter has been provided or is empty.${c_reset}"
@@ -185,7 +185,7 @@ main() {
 
     find -L ${source} -not -path '*/\.*' \( -name '*.h' \) | ctags -n --fields=EfiklsZSt --extras=-f --c-kinds=+p -L - -f "${file}" --tag-relative=never --language-force=c
 
-    if [[ $? -ne 0 ]] ; then
+    if [[ ${?} -ne 0 ]] ; then
       if [[ ${verbosity} != "quiet" ]] ; then
         echo -e "${c_error}ERROR: The ${c_notice}ctags${c_error} process failed.${c_reset}"
       fi
@@ -203,7 +203,7 @@ main() {
 
       sed -i -e "s|${source}||g" "${file}"
 
-      if [[ $? -ne 0 ]] ; then
+      if [[ ${?} -ne 0 ]] ; then
         if [[ ${verbosity} != "quiet" ]] ; then
           echo -e "${c_error}ERROR: Failed to strip the full path from the ${c_notice}${file}${c_error} file.${c_reset}"
         fi
diff --git a/build/scripts/generate_unicode.sh b/build/scripts/generate_unicode.sh
index b339669..cb541ca 100644
--- a/build/scripts/generate_unicode.sh
+++ b/build/scripts/generate_unicode.sh
@@ -14,7 +14,7 @@ main() {
   local IFS=$' \t\n' # Prevent IFS exploits by overriding with a local scope.
 
   local file_input="codes.txt"
-  local mode=$1
+  local mode=${1}
   local code=
   local sequence=
   local block=
@@ -29,36 +29,36 @@ main() {
   local u3=
   local -i i=0
 
-  if [[ $mode == "" ]] ; then
+  if [[ ${mode} == "" ]] ; then
     mode=source
-  elif [[ ! ($mode == "source" || $mode == "test") ]] ; then
+  elif [[ ! (${mode} == "source" || ${mode} == "test") ]] ; then
 
-    # return on invalid parameter.
+    # Return on invalid parameter.
     return 1
   fi
 
-  for code in $(cat $file_input) ; do
+  for code in $(cat ${file_input}) ; do
 
     process
 
-    if [[ "$previous" == "" || "$block" == "$previous" ]] ; then
-      if [[ $i -eq 0 ]] ; then
-        s0=$sequence
-        u0=$code
+    if [[ "${previous}" == "" || "${block}" == "${previous}" ]] ; then
+      if [[ ${i} -eq 0 ]] ; then
+        s0=${sequence}
+        u0=${code}
         let i++
-      elif [[ $i -eq 1 ]] ; then
-        s1=$sequence
-        u1=$code
+      elif [[ ${i} -eq 1 ]] ; then
+        s1=${sequence}
+        u1=${code}
         let i++
-      elif [[ $i -eq 2 ]] ; then
-        s2=$sequence
-        u2=$code
+      elif [[ ${i} -eq 2 ]] ; then
+        s2=${sequence}
+        u2=${code}
         let i++
       else
-        s3=$sequence
-        u3=$code
+        s3=${sequence}
+        u3=${code}
 
-        generate "$block"
+        generate "${block}"
 
         s0=
         s1=
@@ -73,16 +73,16 @@ main() {
         let i=0
       fi
     else
-      if [[ $i -gt 0 ]] ; then
-        generate "$previous"
+      if [[ ${i} -gt 0 ]] ; then
+        generate "${previous}"
       fi
 
-      s0=$sequence
+      s0=${sequence}
       s1=
       s2=
       s3=
 
-      u0=$code
+      u0=${code}
       u1=
       u2=
       u3=
@@ -90,89 +90,89 @@ main() {
       let i=1
     fi
 
-    previous="$block"
+    previous="${block}"
   done
 
-  if [[ $s0 != "" ]] ; then
-    generate "$previous"
+  if [[ ${s0} != "" ]] ; then
+    generate "${previous}"
   fi
 }
 
 process() {
-  local utf8=$(unicode --color=0 $code | grep -o "^UTF-8:.*UTF-16BE:" | sed -e 's|UTF-8:||' -e 's|UTF-16BE:||' | sed -e 's| ||g')
+  local utf8=$(unicode --color=0 ${code} | grep -sho "^UTF-8:.*UTF-16BE:" | sed -e 's|UTF-8:||' -e 's|UTF-16BE:||' | sed -e 's| ||g')
 
-  block=$(unicode --color=0 $code | grep -o "^Unicode block: .*$" | sed -e 's|Unicode block:.*; ||')
+  block=$(unicode --color=0 ${code} | grep -sho "^Unicode block: .*$" | sed -e 's|Unicode block:.*; ||')
 
-  if [[ $mode == "source" ]] ; then
-    sequence="0x$utf8"
+  if [[ ${mode} == "source" ]] ; then
+    sequence="0x${utf8}"
 
-    if [[ $(echo -n "$utf8" | wc -c) -eq 2 ]] ; then
+    if [[ $(wc -c <<< ${utf8}) -eq 2 ]] ; then
       sequence="${sequence}000000"
-    elif [[ $(echo -n "$utf8" | wc -c) -eq 4 ]] ; then
+    elif [[ $(wc -c <<< ${utf8}) -eq 4 ]] ; then
       sequence="${sequence}0000"
-    elif [[ $(echo -n "$utf8" | wc -c) -eq 6 ]] ; then
+    elif [[ $(wc -c <<< ${utf8}) -eq 6 ]] ; then
       sequence="${sequence}00"
     fi
-  elif [[ $mode == "test" ]] ; then
-    sequence="$utf8"
+  elif [[ ${mode} == "test" ]] ; then
+    sequence="${utf8}"
   fi
 }
 
 generate() {
-  if [[ $mode == "source" ]] ; then
-    generate_source "$1"
-  elif [[ $mode == "test" ]] ; then
-    generate_test "$1"
+  if [[ ${mode} == "source" ]] ; then
+    generate_source "${1}"
+  elif [[ ${mode} == "test" ]] ; then
+    generate_test "${1}"
   fi
 }
 
 generate_source() {
   local comment=
   local condition=
-  local block="$1"
+  local block="${1}"
 
-  if [[ $u3 == "" ]] ; then
-    if [[ $u2 == "" ]] ; then
-      if [[ $u1 == "" ]] ; then
-        comment="$u0"
-        condition="character == $s0"
+  if [[ ${u3} == "" ]] ; then
+    if [[ ${u2} == "" ]] ; then
+      if [[ ${u1} == "" ]] ; then
+        comment="${u0}"
+        condition="character == ${s0}"
       else
-        comment="$u0, $u1"
-        condition="character == $s0 || character == $s1"
+        comment="${u0}, ${u1}"
+        condition="character == ${s0} || character == ${s1}"
       fi
     else
-      comment="$u0, $u1, $u2"
-      condition="character == $s0 || character == $s1 || character == $s2"
+      comment="${u0}, ${u1}, ${u2}"
+      condition="character == ${s0} || character == ${s1} || character == ${s2}"
     fi
   else
-    comment="$u0, $u1, $u2, $u3"
-    condition="character == $s0 || character == $s1 || character == $s2 || character == $s3"
+    comment="${u0}, ${u1}, ${u2}, ${u3}"
+    condition="character == ${s0} || character == ${s1} || character == ${s2} || character == ${s3}"
   fi
 
   echo
-  echo "// $block: $comment."
-  echo "if ($condition) {"
+  echo "// ${block}: ${comment}."
+  echo "if (${condition}) {"
   echo "  return F_true;"
   echo "}"
 }
 
 generate_test() {
 
-  if [[ $s0 != "" ]] ; then
-    printf "%llu\n" $((16#$s0))
+  if [[ ${s0} != "" ]] ; then
+    printf "%llu\n" $((16#${s0}))
   fi
 
-  if [[ $s1 != "" ]] ; then
-    printf "%llu\n" $((16#$s1))
+  if [[ ${s1} != "" ]] ; then
+    printf "%llu\n" $((16#${s1}))
   fi
 
-  if [[ $s2 != "" ]] ; then
-    printf "%llu\n" $((16#$s2))
+  if [[ ${s2} != "" ]] ; then
+    printf "%llu\n" $((16#${s2}))
   fi
 
-  if [[ $s3 != "" ]] ; then
-    printf "%llu\n" $((16#$s3))
+  if [[ ${s3} != "" ]] ; then
+    printf "%llu\n" $((16#${s3}))
   fi
 }
 
-main "$1"
+main "${1}"
diff --git a/build/scripts/install.sh b/build/scripts/install.sh
index e0cf853..72ccfac 100644
--- a/build/scripts/install.sh
+++ b/build/scripts/install.sh
@@ -83,8 +83,8 @@ install_main() {
   local enable_static_libraries="yes"
   local enable_includes="yes"
 
-  if [[ $# -gt 0 ]] ; then
-    t=$#
+  if [[ ${#} -gt 0 ]] ; then
+    t=${#}
 
     while [[ ${i} -lt ${t} ]] ; do
       let i=${i}+1
@@ -190,29 +190,29 @@ install_main() {
         fi
       else
         if [[ ${grab_next} == "path_build" ]] ; then
-          path_build=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          path_build=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "prefix" ]] ; then
-          destination_prefix=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_prefix=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "bindir" ]] ; then
-          destination_programs=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_programs=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "docdir" ]] ; then
-          destination_documentation=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_documentation=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "etcdir" ]] ; then
-          destination_settings=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_settings=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "includedir" ]] ; then
-          destination_includes=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_includes=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "libdir" ]] ; then
-          destination_libraries=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_libraries=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "work" ]] ; then
-          work=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          work=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "destination_libraries_static" ]] ; then
-          destination_libraries_static=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_libraries_static=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "destination_libraries_shared" ]] ; then
-          destination_libraries_shared=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_libraries_shared=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "destination_programs_static" ]] ; then
-          destination_programs_static=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_programs_static=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "destination_programs_shared" ]] ; then
-          destination_programs_shared=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          destination_programs_shared=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         fi
 
         grab_next=
@@ -269,29 +269,29 @@ install_main() {
   fi
 
   if [[ ${destination_prefix} != "" ]] ; then
-    if [[ $(echo ${destination_documentation} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_documentation}) == "" ]] ; then
       destination_documentation="${destination_prefix}${destination_documentation}"
     fi
 
-    if [[ $(echo ${destination_programs} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_programs}) == "" ]] ; then
       destination_programs="${destination_prefix}${destination_programs}"
     fi
 
-    if [[ $(echo ${destination_includes} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_includes}) == "" ]] ; then
       destination_includes="${destination_prefix}${destination_includes}"
     fi
 
-    if [[ $(echo ${destination_libraries} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_libraries}) == "" ]] ; then
       destination_libraries="${destination_prefix}${destination_libraries}"
     fi
 
-    if [[ $(echo ${destination_settings} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_settings}) == "" ]] ; then
       destination_settings="${destination_prefix}${destination_settings}"
     fi
   fi
 
   if [[ ${destination_libraries_static} != "" ]] ; then
-    if [[ $(echo ${destination_libraries_static} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_libraries_static}) == "" ]] ; then
       destination_libraries_static=${destination_libraries}${destination_libraries_static}
     fi
   else
@@ -299,7 +299,7 @@ install_main() {
   fi
 
   if [[ ${destination_libraries_shared} != "" ]] ; then
-    if [[ $(echo ${destination_libraries_shared} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_libraries_shared}) == "" ]] ; then
       destination_libraries_shared=${destination_libraries}${destination_libraries_shared}
     fi
   else
@@ -307,7 +307,7 @@ install_main() {
   fi
 
   if [[ ${destination_programs_static} != "" ]] ; then
-    if [[ $(echo ${destination_programs_static} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_programs_static}) == "" ]] ; then
       destination_programs_static=${destination_programs}${destination_programs_static}
     fi
   else
@@ -315,7 +315,7 @@ install_main() {
   fi
 
   if [[ ${destination_programs_shared} != "" ]] ; then
-    if [[ $(echo ${destination_programs_shared} | grep -o '^/') == "" ]] ; then
+    if [[ $(grep -sho '^/' <<< ${destination_programs_shared}) == "" ]] ; then
       destination_programs_shared=${destination_programs}${destination_programs_shared}
     fi
   else
@@ -650,7 +650,7 @@ install_perform_install() {
   if [[ ${failure} -eq 0 && -d ${path_build}${path_includes} && ${enable_includes} == "yes" ]] ; then
     for i in ${path_build}${path_includes}* ; do
 
-      file=$(echo ${i} | sed -e "s|^${path_build}${path_includes}||")
+      file=$(sed -e "s|^${path_build}${path_includes}||" <<< ${i})
 
       break
     done
@@ -681,7 +681,7 @@ install_perform_install() {
     if [[ -d ${path_build}${path_libraries}${path_static} && ${enable_static_libraries} == "yes" ]] ; then
       for i in ${path_build}${path_libraries}${path_static}* ; do
 
-        file=$(echo ${i} | sed -e "s|^${path_build}${path_libraries}${path_static}||")
+        file=$(sed -e "s|^${path_build}${path_libraries}${path_static}||" <<< ${i})
 
         break
       done
@@ -711,7 +711,7 @@ install_perform_install() {
     if [[ ${failure} -eq 0 && -d ${path_build}${path_libraries}${path_shared} && ${enable_shared_libraries} == "yes" ]] ; then
       for i in ${path_build}${path_libraries}${path_shared}* ; do
 
-        file=$(echo ${i} | sed -e "s|^${path_build}${path_libraries}${path_shared}||")
+        file=$(sed -e "s|^${path_build}${path_libraries}${path_shared}||" <<< ${i})
 
         break
       done
@@ -743,7 +743,7 @@ install_perform_install() {
     if [[ -d ${path_build}${path_programs}${path_static} && ${enable_static_programs} == "yes" ]] ; then
       for i in ${path_build}${path_programs}${path_static}* ; do
 
-        file=$(echo ${i} | sed -e "s|^${path_build}${path_programs}${path_static}||")
+        file=$(sed -e "s|^${path_build}${path_programs}${path_static}||" <<< ${i})
 
         break
       done
@@ -773,7 +773,7 @@ install_perform_install() {
     if [[ ${failure} -eq 0 && -d ${path_build}${path_programs}${path_shared} && ${enable_shared_programs} == "yes" ]] ; then
       for i in ${path_build}${path_programs}${path_shared}* ; do
 
-        file=$(echo ${i} | sed -e "s|^${path_build}${path_programs}${path_shared}||")
+        file=$(sed -e "s|^${path_build}${path_programs}${path_shared}||" <<< ${i})
 
         break
       done
@@ -804,7 +804,7 @@ install_perform_install() {
   if [[ ${failure} -eq 0 && -d ${path_build}${path_settings} && ${enable_settings} == "yes" ]] ; then
     for i in ${path_build}${path_settings}* ; do
 
-      file=$(echo ${i} | sed -e "s|^${path_build}${path_settings}||")
+      file=$(sed -e "s|^${path_build}${path_settings}||" <<< ${i})
 
       break
     done
@@ -834,7 +834,7 @@ install_perform_install() {
   if [[ ${failure} -eq 0 && -d ${path_build}${path_documentation} && ${enable_documentation} == "yes" ]] ; then
     for i in ${path_build}${path_documentation}* ; do
 
-      file=$(echo ${i} | sed -e "s|^${path_build}${path_documentation}||")
+      file=$(sed -e "s|^${path_build}${path_documentation}||" <<< ${i})
 
       break
     done
diff --git a/build/scripts/package.sh b/build/scripts/package.sh
index 3ec93d3..fd44e16 100644
--- a/build/scripts/package.sh
+++ b/build/scripts/package.sh
@@ -20,7 +20,7 @@ package_main() {
 
   local public_name="Simple FLL Project Package Script"
   local system_name=package
-  local called_name=$(basename $0)
+  local called_name=$(basename ${0})
   local version=0.6.14
 
   local grab_next=
@@ -59,8 +59,8 @@ package_main() {
   local verbose_common=
   local result=
 
-  if [[ $# -gt 0 ]] ; then
-    t=$#
+  if [[ ${#} -gt 0 ]] ; then
+    t=${#}
 
     while [[ ${i} -lt ${t} ]] ; do
       let i=${i}+1
@@ -106,7 +106,7 @@ package_main() {
           verbose="+D"
           verbose_common="-v"
         elif [[ ${p} == "+v" || ${p} == "++version" ]] ; then
-          echo $version
+          echo ${version}
           return 0
         elif [[ ${p} == "-b" || ${p} == "--build" ]] ; then
           grab_next=path_build
@@ -134,17 +134,17 @@ package_main() {
         fi
       else
         if [[ ${grab_next} == "path_build" ]] ; then
-          path_build=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          path_build=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "path_destination" ]] ; then
-          path_destination=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          path_destination=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "path_sources" ]] ; then
-          path_sources=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          path_sources=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
         elif [[ ${grab_next} == "stand_alone" ]] ; then
           mode_stand_alone="${mode_stand_alone}${p} "
         elif [[ ${grab_next} == "prepend" ]] ; then
 
           # Provide a bare minimal sanitizer that probably doesn't catch everything that it ideally should.
-          prepend=$(echo ${p} | sed -e 's|[\!~\`@#$%^&*();:><?/"\\]||g' -e 's@|@@g' -e "s|'||g" -e "s|\s*||g")
+          prepend=$(sed -e 's|[\!~\`@#$%^&*( <<< ${p});:><?/"\\]||g' -e 's@|@@g' -e "s|'||g" -e "s|\s*||g")
         fi
 
         grab_next=
@@ -205,7 +205,7 @@ package_main() {
 
       for i in build/stand_alone/*.settings ; do
 
-        mode_stand_alone="${mode_stand_alone}$(echo ${i} | sed -e 's|build/stand_alone/||' -e 's|\.settings$||') "
+        mode_stand_alone="${mode_stand_alone}$(sed -e 's|build/stand_alone/||' -e 's|\.settings$||' <<< ${i}) "
       done
     fi
   fi
@@ -389,14 +389,14 @@ package_main() {
 
 package_handle_colors() {
 
-  if [[ $do_color == "light" ]] ; then
+  if [[ ${do_color} == "light" ]] ; then
     c_error="\\033[1;31m"
     c_warning="\\033[0;31m"
     c_title="\\033[1;34m"
     c_highlight="\\033[0;34m"
     c_notice="\\033[0;01m"
     c_important="\\033[0;35m"
-  elif [[ $do_color == "none" ]] ; then
+  elif [[ ${do_color} == "none" ]] ; then
     c_reset=
     c_title=
     c_error=
@@ -591,9 +591,9 @@ package_dependencies_individual() {
 
   for directory in ${path_sources}level_0/* ${path_sources}level_1/* ${path_sources}level_2/* ${path_sources}level_3/* ; do
 
-    name="$(echo ${directory} | sed -e "s|${path_sources}level_0/||" -e "s|${path_sources}level_1/||" -e "s|${path_sources}level_2/||" -e "s|${path_sources}level_3/||")"
+    name="$(sed -e "s|${path_sources}level_0/||" -e "s|${path_sources}level_1/||" -e "s|${path_sources}level_2/||" -e "s|${path_sources}level_3/||" <<< ${directory})"
 
-    level_current="$(echo ${directory} | grep -o '\<level_[[:digit:]]/' | sed -e 's|level_||' -e 's|/$||')"
+    level_current="$(grep -sho '\<level_[[:digit:]]/' | sed -e 's|level_||' -e 's|/$||' <<< ${directory})"
 
     if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
       echo
@@ -609,7 +609,7 @@ package_dependencies_individual() {
     fi
 
     # Additional dependency files are only supported in level_3.
-    if [[ $(echo "${directory}" | grep -o "^${path_sources}level_3/") != "" ]] ; then
+    if [[ $(grep -sho "^${path_sources}level_3/" <<< ${directory}) != "" ]] ; then
       dependency_files="yes"
 
       # When the files don't exist bash treats the pattern as a literal file.
@@ -630,11 +630,11 @@ package_dependencies_individual() {
 
       if [[ ! -f ${dependency_file} ]] ; then
 
-        if [[ $dependency_files == "yes" && "${directory}/data/build/dependencies" != ${dependency_file} ]] ; then
+        if [[ ${dependency_files} == "yes" && "${directory}/data/build/dependencies" != ${dependency_file} ]] ; then
           if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
             echo -e "${c_warning}WARNING: The dependency file ${c_notice}${dependency_file}${c_warning} is not found.${c_reset}"
           fi
-        elif [[ $dependency_files == "no" && "${directory}/data/build/dependencies.*" != ${dependency_file} ]] ; then
+        elif [[ ${dependency_files} == "no" && "${directory}/data/build/dependencies.*" != ${dependency_file} ]] ; then
           if [[ ${verbosity} != "quiet" ]] ; then
             echo -e "${c_error}ERROR: Cannot build dependencies, failed to find ${c_notice}${dependency_file}${c_error} file(s).${c_reset}"
           fi
@@ -646,7 +646,7 @@ package_dependencies_individual() {
       if [[ ${dependency_file} == "${directory}/data/build/dependencies" ]] ; then
         dependency_suffix=
       else
-        dependency_suffix=$(echo ${dependency_file} | sed -e "s|^${directory}/data/build/dependencies||")
+        dependency_suffix=$(sed -e "s|^${directory}/data/build/dependencies||" <<< ${dependency_file})
       fi
 
       if [[ ! -f ${directory}/data/build/settings${dependency_suffix} ]] ; then
@@ -669,17 +669,17 @@ package_dependencies_individual() {
 
       dependencies=$(cat ${dependency_file} | sed -e "/^\s*#/d" -e "s|#\.*$||")
 
-      if [[ $(echo "$dependencies" | grep -o "\<f_thread\>") != "" ]] ; then
+      if [[ $(grep -sho "\<f_thread\>" <<< ${dependencies}) != "" ]] ; then
         has_thread="yes"
       fi
 
-      for dependency in $dependencies ; do
+      for dependency in ${dependencies} ; do
 
-        if [[ $(echo "${dependency}" | grep -o "^f_") != "" ]] ; then
+        if [[ $(grep -sho "^f_" <<< ${dependency}) != "" ]] ; then
           level=level_0
-        elif [[ $(echo "${dependency}" | grep -o "^fl_") != "" ]] ; then
+        elif [[ $(grep -sho "^fl_" <<< ${dependency}) != "" ]] ; then
           level=level_1
-        elif [[ $(echo "${dependency}" | grep -o "^fll_") != "" ]] ; then
+        elif [[ $(grep -sho "^fll_" <<< ${dependency}) != "" ]] ; then
           level=level_2
         else
           if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
@@ -704,11 +704,11 @@ package_dependencies_individual() {
           sub_dependencies=$(cat ${path_sources}${level}/${dependency}/data/build/dependencies | sed -e "/^\s*#/d" -e "s|#\.*$||")
         fi
 
-        for sub_dependency in $sub_dependencies ; do
+        for sub_dependency in ${sub_dependencies} ; do
 
-          if [[ $(echo "${sub_dependency}" | grep -o "^f_") != "" ]] ; then
+          if [[ $(grep -sho "^f_" <<< ${sub_dependency}) != "" ]] ; then
             sub_level=level_0
-          elif [[ $(echo "${sub_dependency}" | grep -o "^fl_") != "" ]] ; then
+          elif [[ $(grep -sho "^fl_" <<< ${sub_dependency}) != "" ]] ; then
             sub_level=level_1
           else
             if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
@@ -733,9 +733,9 @@ package_dependencies_individual() {
             sub_sub_dependencies=$(cat ${path_sources}${sub_level}/${sub_dependency}/data/build/dependencies | sed -e "/^\s*#/d" -e "s|#\.*$||")
           fi
 
-          for sub_sub_dependency in $sub_sub_dependencies ; do
+          for sub_sub_dependency in ${sub_sub_dependencies} ; do
 
-            if [[ $(echo "${sub_sub_dependency}" | grep -o "^f_") != "" ]] ; then
+            if [[ $(grep -sho "^f_" <<< ${sub_sub_dependency}) != "" ]] ; then
               sub_sub_level=level_0
             else
               if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
@@ -778,7 +778,7 @@ package_dependencies_individual() {
         break;
       fi
 
-      dependencies_individual=$(echo "${dependencies_individual}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' -e 's|[[:space:]][[:space:]]*$| |')
+      dependencies_individual=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' -e 's|[[:space:]][[:space:]]*$| |' <<< ${dependencies_individual})
       if [[ ${dependencies_individual} != "" ]] ; then
         if [[ ${verbosity} == "verbose" ]] ; then
           echo -e " ${dependencies_individual}"
@@ -844,8 +844,8 @@ package_dependencies_individual() {
 }
 
 package_dependencies_individual_append() {
-  local level="$1"
-  local dependency="$2"
+  local level="${1}"
+  local dependency="${2}"
   local settings=
   local libraries=
 
@@ -860,10 +860,10 @@ package_dependencies_individual_append() {
     return 1
   fi
 
-  libraries=$(grep -o '^\s*build_sources_library\s.*$' ${settings} | sed -e 's|^\s*build_sources_library\>||' -e 's|^\s*||' -e 's|\s*$||')
+  libraries=$(grep -sho '^\s*build_sources_library\s.*$' ${settings} | sed -e 's|^\s*build_sources_library\>||' -e 's|^\s*||' -e 's|\s*$||')
 
-  if [[ $libraries != "" ]] ; then
-    if [[ $(echo -n ${dependencies_individual} | grep -o "\-l${dependency}\>") == "" ]] ; then
+  if [[ ${libraries} != "" ]] ; then
+    if [[ $(grep -sho "\-l${dependency}\>" <<< ${dependencies_individual}) == "" ]] ; then
 
       if [[ "$(type -p sort)" != "" ]] ; then
         if [[ ${level} == "level_0" ]] ; then
@@ -941,8 +941,8 @@ package_dependencies_level() {
 }
 
 package_dependencies_level_update() {
-  local level="$1"
-  local level_libraries="$2"
+  local level="${1}"
+  local level_libraries="${2}"
   local level_sources_library=
   local level_sources_headers=
   local level_sources_library_threaded=
@@ -959,7 +959,7 @@ package_dependencies_level_update() {
 
   for directory in ${path_sources}${level}/* ; do
 
-    name="$(echo ${directory} | sed -e "s|${path_sources}${level}/||")"
+    name="$(sed -e "s|${path_sources}${level}/||" <<< ${directory})"
 
     settings=${directory}/data/build/settings
     if [[ ! -f ${settings} ]] ; then
@@ -972,28 +972,28 @@ package_dependencies_level_update() {
       return 1
     fi
 
-    libraries=$(grep -o '^\s*build_sources_library\s.*$' ${settings} | sed -e 's|^\s*build_sources_library\>||' -e 's|^\s*||' -e 's|\s*$||')
+    libraries=$(grep -sho '^\s*build_sources_library\s.*$' ${settings} | sed -e 's|^\s*build_sources_library\>||' -e 's|^\s*||' -e 's|\s*$||')
 
-    for library in $libraries ; do
+    for library in ${libraries} ; do
 
       if [[ ${name} == "f_thread" ]] ; then
-        level_sources_library_threaded="${level_sources_library_threaded} $library"
+        level_sources_library_threaded="${level_sources_library_threaded} ${library}"
         monolithic_libraries_threaded="${monolithic_libraries_threaded} ${level}/${library}"
       else
-        level_sources_library="${level_sources_library} $library"
+        level_sources_library="${level_sources_library} ${library}"
         monolithic_libraries="${monolithic_libraries} ${level}/${library}"
       fi
     done
 
-    headers=$(grep -o '^\s*build_sources_headers\s.*$' ${settings} | sed -e 's|^\s*build_sources_headers\>||' -e 's|^\s*||' -e 's|\s*$||')
+    headers=$(grep -sho '^\s*build_sources_headers\s.*$' ${settings} | sed -e 's|^\s*build_sources_headers\>||' -e 's|^\s*||' -e 's|\s*$||')
 
-    for header in $headers ; do
+    for header in ${headers} ; do
 
       if [[ ${name} == "f_thread" ]] ; then
-        level_sources_headers_threaded="${level_sources_headers_threaded} $header"
+        level_sources_headers_threaded="${level_sources_headers_threaded} ${header}"
         monolithic_headers_threaded="${monolithic_headers_threaded} ${level}/${header}"
       else
-        level_sources_headers="${level_sources_headers} $header"
+        level_sources_headers="${level_sources_headers} ${header}"
         monolithic_headers="${monolithic_headers} ${level}/${header}"
       fi
     done
@@ -1024,7 +1024,7 @@ package_dependencies_level_update() {
     return 1
   fi
 
-  level_sources_library=$(echo "${level_sources_library}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
+  level_sources_library=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${level_sources_library})
   if [[ ${level_sources_library} != "" ]] ; then
     echo " ${level_sources_library}"
     level_sources_library=" ${level_sources_library}"
@@ -1045,7 +1045,7 @@ package_dependencies_level_update() {
     return 1
   fi
 
-  level_sources_headers=$(echo "${level_sources_headers}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
+  level_sources_headers=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${level_sources_headers})
   if [[ ${level_sources_headers} != "" ]] ; then
     echo " ${level_sources_headers}"
     level_sources_headers=" ${level_sources_headers}"
@@ -1067,23 +1067,23 @@ package_dependencies_level_update() {
   fi
 
   if [[ ${level} == "level_0" ]] ; then
-    level_0_libraries=$(echo "${monolithic_libraries}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
-    level_0_headers=$(echo "${monolithic_headers}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
+    level_0_libraries=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_libraries})
+    level_0_headers=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_headers})
 
-    level_0_libraries_threaded=$(echo "${monolithic_libraries_threaded}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
-    level_0_headers_threaded=$(echo "${monolithic_headers_threaded}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
+    level_0_libraries_threaded=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_libraries_threaded})
+    level_0_headers_threaded=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_headers_threaded})
   elif [[ ${level} == "level_1" ]] ; then
-    level_1_libraries=$(echo "${monolithic_libraries}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
-    level_1_headers=$(echo "${monolithic_headers}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
+    level_1_libraries=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_libraries})
+    level_1_headers=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_headers})
 
-    level_1_libraries_threaded=$(echo "${monolithic_libraries_threaded}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
-    level_1_headers_threaded=$(echo "${monolithic_headers_threaded}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
+    level_1_libraries_threaded=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_libraries_threaded})
+    level_1_headers_threaded=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_headers_threaded})
   elif [[ ${level} == "level_2" ]] ; then
-    level_2_libraries=$(echo "${monolithic_libraries}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
-    level_2_headers=$(echo "${monolithic_headers}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
+    level_2_libraries=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_libraries})
+    level_2_headers=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_headers})
 
-    level_2_libraries_threaded=$(echo "${monolithic_libraries_threaded}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
-    level_2_headers_threaded=$(echo "${monolithic_headers_threaded}" | sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||')
+    level_2_libraries_threaded=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_libraries_threaded})
+    level_2_headers_threaded=$(sed -e 's|^[[:space:]]*||' -e 's|[[:space:]]*$||' <<< ${monolithic_headers_threaded})
   fi
 
   return 0
@@ -1499,16 +1499,16 @@ package_operation_create_config_stubs() {
 
   local language=
 
-  if [[ $(grep -soP '^\s*\bbuild_language\b\s+c\s*$' ${package}data/build/settings) != "" ]] ; then
+  if [[ $(grep -shoP '^\s*\bbuild_language\b\s+c\s*$' ${package}data/build/settings) != "" ]] ; then
     language="c"
-  elif [[  $(grep -soP '^\s*\bbuild_language\b\s+c\+\+\s*$' ${package}data/build/settings) != "" ]] ; then
+  elif [[  $(grep -shoP '^\s*\bbuild_language\b\s+c\+\+\s*$' ${package}data/build/settings) != "" ]] ; then
     language="c++"
   else
     return 0
   fi
 
   if [[ ${language} == "c" && ! -f ${package}sources/c/config.c ]] ; then
-    if [[ $(grep -soP '^\s*\bbuild_sources_program\b\s+\S' ${package}data/build/settings) != "" ]] ; then
+    if [[ $(grep -shoP '^\s*\bbuild_sources_program\b\s+\S' ${package}data/build/settings) != "" ]] ; then
       sed -i -E -e "s|^\s*\bbuild_sources_program\s+|&config.c |" ${package}data/build/settings
 
       if [[ ${?} -ne 0 ]] ; then
@@ -1520,7 +1520,7 @@ package_operation_create_config_stubs() {
 
         return ${failure}
       fi
-    elif [[ $(grep -soP '^\s*\bbuild_sources_library\b\s+\S' ${package}data/build/settings) != "" ]] ; then
+    elif [[ $(grep -shoP '^\s*\bbuild_sources_library\b\s+\S' ${package}data/build/settings) != "" ]] ; then
       sed -i -E -e "s|^\s*\bbuild_sources_library\s+|&config.c |" ${package}data/build/settings
 
       if [[ ${?} -ne 0 ]] ; then
@@ -1534,7 +1534,7 @@ package_operation_create_config_stubs() {
       fi
     fi
 
-    if [[ $(grep -soP '^\s*\bbuild_sources_program\b\s+\S' ${package}data/build/settings) != "" || $(grep -soP '^\s*\bbuild_sources_library\b\s+\S' ${package}data/build/settings) != "" ]] ; then
+    if [[ $(grep -shoP '^\s*\bbuild_sources_program\b\s+\S' ${package}data/build/settings) != "" || $(grep -shoP '^\s*\bbuild_sources_library\b\s+\S' ${package}data/build/settings) != "" ]] ; then
       echo > ${package}sources/c/config.c &&
       echo "#include \"config.h\"" >> ${package}sources/c/config.c
 
@@ -1549,7 +1549,7 @@ package_operation_create_config_stubs() {
       fi
     fi
   elif [[ ${language} == "c++" && ! -f ${package}sources/c/config.cpp ]] ; then
-    if [[ $(grep -soP '^\s*\bbuild_sources_program\b\s+\S' ${package}data/build/settings) != "" ]] ; then
+    if [[ $(grep -shoP '^\s*\bbuild_sources_program\b\s+\S' ${package}data/build/settings) != "" ]] ; then
       sed -i -E -e "s|^\s*\bbuild_sources_program\s+|&config.cpp |" ${package}data/build/settings
 
       if [[ ${?} -ne 0 ]] ; then
@@ -1561,7 +1561,7 @@ package_operation_create_config_stubs() {
 
         return ${failure}
       fi
-    elif [[ $(grep -soP '^\s*\bbuild_sources_library\b\s+\S' ${package}data/build/settings) != "" ]] ; then
+    elif [[ $(grep -shoP '^\s*\bbuild_sources_library\b\s+\S' ${package}data/build/settings) != "" ]] ; then
       sed -i -E -e "s|^\s*\bbuild_sources_library\s+|&config.cpp |" ${package}data/build/settings
 
       if [[ ${?} -ne 0 ]] ; then
@@ -1575,7 +1575,7 @@ package_operation_create_config_stubs() {
       fi
     fi
 
-    if [[ $(grep -soP '^\s*\bbuild_sources_program\b\s+\S' ${package}data/build/settings) != "" || $(grep -soP '^\s*\bbuild_sources_library\b\s+\S' ${package}data/build/settings) != "" ]] ; then
+    if [[ $(grep -shoP '^\s*\bbuild_sources_program\b\s+\S' ${package}data/build/settings) != "" || $(grep -shoP '^\s*\bbuild_sources_library\b\s+\S' ${package}data/build/settings) != "" ]] ; then
       echo > ${package}sources/c++/config.cpp &&
       echo "#include \"config.h\"" >> ${package}sources/c++/config.cpp
 
@@ -1592,7 +1592,7 @@ package_operation_create_config_stubs() {
   fi
 
   if [[ ( ${language} == "c" && ! -f ${package}sources/c/config.h ) || ( ${language} == "c++" && ! -f ${package}sources/c++/config.h ) ]] ; then
-    if [[ $(grep -soP '^\s*\bbuild_language\b\s+c\s*$' ${package}data/build/settings) != "" ]] ; then
+    if [[ $(grep -shoP '^\s*\bbuild_language\b\s+c\s*$' ${package}data/build/settings) != "" ]] ; then
       echo > ${package}sources/c/config.h
 
       if [[ ${?} -ne 0 ]] ; then
@@ -1666,7 +1666,7 @@ package_operation_individual() {
 
   for directory in ${path_sources}level_0/* ${path_sources}level_1/* ${path_sources}level_2/* ; do
 
-    name="$(echo ${directory} | sed -e "s|${path_sources}level_0/||" -e "s|${path_sources}level_1/||" -e "s|${path_sources}level_2/||")"
+    name="$(sed -e "s|${path_sources}level_0/||" -e "s|${path_sources}level_1/||" -e "s|${path_sources}level_2/||" <<< ${directory})"
     package="${path_destination}individual/${prepend}${name}-${version}/"
 
     if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
@@ -2133,7 +2133,7 @@ package_operation_program() {
 
   for directory in ${path_sources}level_3/* ; do
 
-    name="$(echo ${directory} | sed -e "s|${path_sources}level_3/||")"
+    name="$(sed -e "s|${path_sources}level_3/||" <<< ${directory})"
     package="${path_destination}program/${prepend}${name}-${version}/"
 
     if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
@@ -2278,14 +2278,14 @@ package_operation_stand_alone() {
     # Copy all sources into a named sub-directory.
     for path_ in ${package}sources/* ; do
 
-      path_name="$(basename $path_)"
+      path_name="$(basename ${path_})"
 
       for path_sub in ${package}sources/${path_name}/* ; do
 
         path_name_sub="$(basename ${path_sub})"
 
         # Do not attempt copying into self.
-        if [[ $path_name_sub == "program" ]] ; then
+        if [[ ${path_name_sub} == "program" ]] ; then
           continue
         fi
 
@@ -2340,7 +2340,7 @@ package_operation_stand_alone() {
     fi
 
     if [[ -f ${package}data/build/dependencies ]] ; then
-      packages=$(grep -soP '^\s*[^\s]+' ${package}data/build/dependencies | sed -e 's|^[[:space:]]*||g')
+      packages=$(grep -shoP '^\s*[^\s]+' ${package}data/build/dependencies | sed -e 's|^[[:space:]]*||g')
 
       if [[ ${packages} != "" ]] ; then
         for package_sub in ${packages} ; do
diff --git a/build/scripts/test.sh b/build/scripts/test.sh
index 99b9ea0..13257d4 100644
--- a/build/scripts/test.sh
+++ b/build/scripts/test.sh
@@ -15,7 +15,6 @@
 
 test_main() {
   local IFS=$' \t\n' # Prevent IFS exploits by overriding with a local scope.
-
   local shell_command=bash
 
   if [[ ${SHELL_ENGINE} == "zsh" ]] ; then
@@ -77,8 +76,8 @@ test_main() {
   local projects_no_tests="f_type"
   local programs="fss_basic_read fss_extended_read fss_basic_list_read fss_extended_list_read fss_payload_read"
 
-  if [[ $# -gt 0 ]] ; then
-    t=$#
+  if [[ ${#} -gt 0 ]] ; then
+    t=${#}
 
     while [[ ${i} -lt ${t} ]] ; do
 
@@ -156,10 +155,10 @@ test_main() {
         if [[ ${grab_next} == "build_compiler" ]] ; then
           build_compiler=${p}
         elif [[ ${grab_next} == "path_scripts" ]] ; then
-          path_scripts=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          path_scripts=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
           path_scripts_package=${path_scripts}package.sh
         elif [[ ${grab_next} == "path_test" ]] ; then
-          path_test=$(echo ${p} | sed -e 's|^//*|/|' -e 's|/*$|/|')
+          path_test=$(sed -e 's|^//*|/|' -e 's|/*$|/|' <<< ${p})
           path_test_package=${path_test}package/
           path_test_package_individual=${path_test_package}individual/
           path_test_package_program=${path_test_package}program/
@@ -290,7 +289,7 @@ test_main() {
   if [[ ${failure} -eq 0 ]] ; then
     test_operate
 
-    let failure=$?
+    let failure=${?}
   fi
 
   test_cleanup
@@ -599,6 +598,7 @@ test_operate_build_project() {
   fi
 
   if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
+    echo
     echo -e "Installing ${mode} project '${c_notice}${project}${c_reset}'."
     echo
   fi
@@ -737,9 +737,10 @@ test_operate_ci_pretest_cmocka() {
   local cmocka_path="${path_test}cmocka/"
   local cmocka_build="${cmocka_path}build/"
   local cmocka_data="${cmocka_path}data/build/"
-  local cmocka_settings="${path_original}level_3/fake/data/projects/cmocka/1.1.5/settings"
+  local cmocka_version="1.1.7"
+  local cmocka_settings="${path_original}level_3/fake/data/projects/cmocka/${cmocka_version}/settings"
   local cmocka_uri="https://github.com/coreboot/cmocka.git"
-  local cmocka_branch="cmocka-1.1.5"
+  local cmocka_branch="cmocka-${cmocka_version}"
 
   if [[ -d ${cmocka_path} ]] ; then
     if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
@@ -753,7 +754,7 @@ test_operate_ci_pretest_cmocka() {
     echo "git clone ${clone_quiet} --single-branch -b ${cmocka_branch} \"${cmocka_uri}\" ${cmocka_path}"
   fi
 
-  git clone ${clone_quiet} --single-branch -b ${cmocka_branch} "${cmocka_uri}" ${cmocka_path}
+  git clone ${clone_quiet} --single-branch -b ${cmocka_branch} ${cmocka_uri} ${cmocka_path}
 
   if [[ ${?} -ne 0 ]] ; then
     if [[ ${verbosity} != "quiet" ]] ; then
@@ -1009,7 +1010,7 @@ test_operate_tests_projects() {
 
     if [[ ${failure} -eq 0 ]] ; then
       if [[ ! -f ${path_test_package_individual}${project}-${version}/data/build/testfile ]] ; then
-        if [[ $(echo ${projects_no_tests} | grep -o "\<${project}\>") == "" ]] ; then
+        if [[ $(grep -sho "\<${project}\>" <<< ${projects_no_tests}) == "" ]] ; then
           if [[ ${verbosity} == "verbose" || ${verbosity} == "debug" ]] ; then
             echo -e "${c_warning}WARNING: Project '${c_notice}${project}${c_warning}' does not have a testfile.${c_reset}"
           fi
diff --git a/level_3/fake/data/build/process_post.sh b/level_3/fake/data/build/process_post.sh
index 286beff..3485327 100755
--- a/level_3/fake/data/build/process_post.sh
+++ b/level_3/fake/data/build/process_post.sh
@@ -16,7 +16,7 @@ process_post_main() {
   local p=
   local t=0
 
-  # custom color codes.
+  # Custom color codes.
   local c_reset="\\033[0m"
   local c_title="\\033[1;33m"
   local c_error="\\033[1;31m"
@@ -27,7 +27,7 @@ process_post_main() {
   local c_subtle="\\033[1;30m"
   local c_prefix="\\"
 
-  # the supported parameters.
+  # The supported parameters.
   local operation=
   local defines=
   local modes=
@@ -39,7 +39,7 @@ process_post_main() {
   local path_work=
   local verbosity=normal
 
-  # generated paths and standard paths.
+  # Generated paths and standard paths.
   local path_directory_separator="/"
   local path_data_build=
   local path_documents="documents/"
@@ -57,12 +57,12 @@ process_post_main() {
   local path_work_programs_shared=
   local path_work_programs_static=
 
-  # generated file paths.
+  # Generated file paths.
   local file_data_build_dependencies=
   local file_data_build_settings=
   local file_documents_readme=
 
-  # standard build paths.
+  # Standard build paths.
   local path_build_documents=
   local path_build_includes=
   local path_build_libraries=
@@ -77,87 +77,88 @@ process_post_main() {
   local path_build_programs_static=
   local path_build_settings=
 
-  # grab all supported parameters, ignoring duplicates.
-  if [[ $# -gt 0 ]] ; then
-    t=$#
+  # Grab all supported parameters, ignoring duplicates.
+  if [[ ${#} -gt 0 ]] ; then
+    t=${#}
 
-    while [[ $i -lt $t ]] ; do
-      let i=$i+1
+    while [[ ${i} -lt ${t} ]] ; do
+
+      let i++
       p="${!i}"
 
-      if [[ $grab_next == "" ]] ; then
-        if [[ $p == "build" || $p == "clean" || $p == "make" || $p == "skeleton" ]] ; then
-          if [[ $operation == "" ]] ; then
-            operation=$p
+      if [[ ${grab_next} == "" ]] ; then
+        if [[ ${p} == "build" || ${p} == "clean" || ${p} == "make" || ${p} == "skeleton" ]] ; then
+          if [[ ${operation} == "" ]] ; then
+            operation=${p}
           fi
-        elif [[ $p == "-d" || $p == "--define" ]] ; then
+        elif [[ ${p} == "-d" || ${p} == "--define" ]] ; then
           grab_next="defines"
-        elif [[ $p == "-m" || $p == "--mode" ]] ; then
+        elif [[ ${p} == "-m" || ${p} == "--mode" ]] ; then
           grab_next="modes"
-        elif [[ $p == "-p" || $p == "--process" ]] ; then
+        elif [[ ${p} == "-p" || ${p} == "--process" ]] ; then
           grab_next="process"
-        elif [[ $p == "-s" || $p == "--settings" ]] ; then
+        elif [[ ${p} == "-s" || ${p} == "--settings" ]] ; then
           grab_next="file_settings"
-        elif [[ $p == "-b" || $p == "--build" ]] ; then
+        elif [[ ${p} == "-b" || ${p} == "--build" ]] ; then
           grab_next="path_build"
-        elif [[ $p == "-D" || $p == "--data" ]] ; then
+        elif [[ ${p} == "-D" || ${p} == "--data" ]] ; then
           grab_next="path_data"
-        elif [[ $p == "-S" || $p == "--sources" ]] ; then
+        elif [[ ${p} == "-S" || ${p} == "--sources" ]] ; then
           grab_next="path_sources"
-        elif [[ $p == "-w" || $p == "--work" ]] ; then
+        elif [[ ${p} == "-w" || ${p} == "--work" ]] ; then
           grab_next="path_work"
-        elif [[ $p == "+D" || $p == "++debug" ]] ; then
+        elif [[ ${p} == "+D" || ${p} == "++debug" ]] ; then
           verbosity=debug
-        elif [[ $p == "+E" || $p == "++error" ]] ; then
+        elif [[ ${p} == "+E" || ${p} == "++error" ]] ; then
           verbosity=error
-        elif [[ $p == "+N" || $p == "++normal" ]] ; then
+        elif [[ ${p} == "+N" || ${p} == "++normal" ]] ; then
           verbosity=normal
-        elif [[ $p == "+Q" || $p == "++quiet" ]] ; then
+        elif [[ ${p} == "+Q" || ${p} == "++quiet" ]] ; then
           verbosity=quiet
-        elif [[ $p == "+V" || $p == "++verbose" ]] ; then
+        elif [[ ${p} == "+V" || ${p} == "++verbose" ]] ; then
           verbosity=verbose
-        elif [[ $p == "+l" || $p == "++light" ]] ; then
+        elif [[ ${p} == "+l" || ${p} == "++light" ]] ; then
           do_color=light
-        elif [[ $p == "+d" || $p == "++dark" ]] ; then
+        elif [[ ${p} == "+d" || ${p} == "++dark" ]] ; then
           do_color=dark
-        elif [[ $p == "+n" || $p == "++no_color" ]] ; then
+        elif [[ ${p} == "+n" || ${p} == "++no_color" ]] ; then
           do_color=none
         fi
       else
-        if [[ $grab_next == "defines" ]] ; then
-          if [[ $defines == "" ]] ; then
-            defines=$p
+        if [[ ${grab_next} == "defines" ]] ; then
+          if [[ ${defines} == "" ]] ; then
+            defines=${p}
           else
-            defines="$defines $p"
+            defines="${defines} ${p}"
           fi
-        elif [[ $grab_next == "modes" ]] ; then
-          if [[ $modes == "" ]] ; then
-            modes=$p
+        elif [[ ${grab_next} == "modes" ]] ; then
+          if [[ ${modes} == "" ]] ; then
+            modes=${p}
           else
-            modes="$modes $p"
+            modes="${modes} ${p}"
           fi
-        elif [[ $grab_next == "process" ]] ; then
-          process="$p"
-        elif [[ $grab_next == "file_settings" ]] ; then
-          file_settings="$p"
-        elif [[ $grab_next == "path_build" ]] ; then
-          path_build=$(process_post_path_fix $p)
-        elif [[ $grab_next == "path_source_build" ]] ; then
-          path_source_build=$(process_post_path_fix $p)
-        elif [[ $grab_next == "path_source_codes" ]] ; then
-          path_source_codes=$(process_post_path_fix $p)
-        elif [[ $grab_next == "path_source_common" ]] ; then
-          path_source_common=$(process_post_path_fix $p)
-        elif [[ $grab_next == "path_source_data" ]] ; then
-          path_source_data=$(process_post_path_fix $p)
-        elif [[ $grab_next == "path_source_documents" ]] ; then
-          path_source_documents=$(process_post_path_fix $p)
-        elif [[ $grab_next == "path_source_licenses" ]] ; then
-          path_source_licenses=$(process_post_path_fix $p)
-        elif [[ $grab_next == "path_source_settings" ]] ; then
-          path_source_settings=$(process_post_path_fix $p)
-        elif [[ $grab_next == "path_work" ]] ; then
-          path_work=$(process_post_path_fix $p)
+        elif [[ ${grab_next} == "process" ]] ; then
+          process="${p}"
+        elif [[ ${grab_next} == "file_settings" ]] ; then
+          file_settings="${p}"
+        elif [[ ${grab_next} == "path_build" ]] ; then
+          path_build=$(process_post_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_build" ]] ; then
+          path_source_build=$(process_post_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_codes" ]] ; then
+          path_source_codes=$(process_post_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_common" ]] ; then
+          path_source_common=$(process_post_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_data" ]] ; then
+          path_source_data=$(process_post_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_documents" ]] ; then
+          path_source_documents=$(process_post_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_licenses" ]] ; then
+          path_source_licenses=$(process_post_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_settings" ]] ; then
+          path_source_settings=$(process_post_path_fix ${p})
+        elif [[ ${grab_next} == "path_work" ]] ; then
+          path_work=$(process_post_path_fix ${p})
         fi
 
         grab_next=
@@ -167,14 +168,14 @@ process_post_main() {
     p=
   fi
 
-  if [[ $do_color == "light" ]] ; then
+  if [[ ${do_color} == "light" ]] ; then
     c_error="\\033[1;31m"
     c_warning="\\033[0;31m"
     c_title="\\033[1;34m"
     c_highlight="\\033[0;34m"
     c_notice="\\033[0;01m"
     c_important="\\033[0;35m"
-  elif [[ $do_color == "none" ]] ; then
+  elif [[ ${do_color} == "none" ]] ; then
     c_reset=
     c_title=
     c_error=
@@ -186,65 +187,66 @@ process_post_main() {
     c_prefix=
   fi
 
-  # update paths based on parameters.
-  path_data_build="${path_data}build$path_directory_separator"
-
-  path_sources_bash="${path_sources}bash$path_directory_separator"
-  path_sources_c="${path_sources}c$path_directory_separator"
-  path_sources_cpp="${path_sources}c++$path_directory_separator"
-
-  path_build_documents="${path_build}documents$path_directory_separator"
-  path_build_includes="${path_build}includes$path_directory_separator"
-  path_build_libraries="${path_build}libraries$path_directory_separator"
-  path_build_libraries_script="${path_build_libraries}script$path_directory_separator"
-  path_build_libraries_shared="${path_build_libraries}shared$path_directory_separator"
-  path_build_libraries_static="${path_build_libraries}static$path_directory_separator"
-  path_build_objects="${path_build}objects$path_directory_separator"
-  path_build_process="${path_build}process$path_directory_separator"
-  path_build_programs="${path_build}programs$path_directory_separator"
-  path_build_programs_script="${path_build_programs}script$path_directory_separator"
-  path_build_programs_shared="${path_build_programs}shared$path_directory_separator"
-  path_build_programs_static="${path_build_programs}static$path_directory_separator"
-  path_build_settings="${path_build}settings$path_directory_separator"
-
-  if [[ $path_work != "" ]] ; then
-    path_work_includes="${path_work}includes$path_directory_separator"
-    path_work_libraries="${path_work_libraries}libraries$path_directory_separator"
-    path_work_libraries_script="${path_work_libraries_script}script$path_directory_separator"
-    path_work_libraries_shared="${path_work_libraries_shared}shared$path_directory_separator"
-    path_work_libraries_static="${path_work_libraries_static}static$path_directory_separator"
-    path_work_programs="${path_work_programs}programs$path_directory_separator"
-    path_work_programs_script="${path_work_programs_script}script$path_directory_separator"
-    path_work_programs_shared="${path_work_programs_shared}shared$path_directory_separator"
-    path_work_programs_static="${path_work_programs_static}static$path_directory_separator"
+  # Update paths based on parameters.
+  path_data_build="${path_data}build${path_directory_separator}"
+
+  path_sources_bash="${path_sources}bash${path_directory_separator}"
+  path_sources_c="${path_sources}c${path_directory_separator}"
+  path_sources_cpp="${path_sources}c++${path_directory_separator}"
+
+  path_build_documents="${path_build}documents${path_directory_separator}"
+  path_build_includes="${path_build}includes${path_directory_separator}"
+  path_build_libraries="${path_build}libraries${path_directory_separator}"
+  path_build_libraries_script="${path_build_libraries}script${path_directory_separator}"
+  path_build_libraries_shared="${path_build_libraries}shared${path_directory_separator}"
+  path_build_libraries_static="${path_build_libraries}static${path_directory_separator}"
+  path_build_objects="${path_build}objects${path_directory_separator}"
+  path_build_process="${path_build}process${path_directory_separator}"
+  path_build_programs="${path_build}programs${path_directory_separator}"
+  path_build_programs_script="${path_build_programs}script${path_directory_separator}"
+  path_build_programs_shared="${path_build_programs}shared${path_directory_separator}"
+  path_build_programs_static="${path_build_programs}static${path_directory_separator}"
+  path_build_settings="${path_build}settings${path_directory_separator}"
+
+  if [[ ${path_work} != "" ]] ; then
+    path_work_includes="${path_work}includes${path_directory_separator}"
+    path_work_libraries="${path_work_libraries}libraries${path_directory_separator}"
+    path_work_libraries_script="${path_work_libraries_script}script${path_directory_separator}"
+    path_work_libraries_shared="${path_work_libraries_shared}shared${path_directory_separator}"
+    path_work_libraries_static="${path_work_libraries_static}static${path_directory_separator}"
+    path_work_programs="${path_work_programs}programs${path_directory_separator}"
+    path_work_programs_script="${path_work_programs_script}script${path_directory_separator}"
+    path_work_programs_shared="${path_work_programs_shared}shared${path_directory_separator}"
+    path_work_programs_static="${path_work_programs_static}static${path_directory_separator}"
   fi
 
   file_data_build_dependencies="${path_data_build}dependencies"
   file_data_build_settings="${path_data_build}settings"
   file_documents_readme="${path_documents}readme"
 
-  if [[ $verbosity != "quiet" && $verbosity != "error" ]] ; then
+  if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
     echo
-    echo -e "${c_title}Completed Operation: $c_reset$c_notice$operation$c_reset"
+    echo -e "${c_title}Completed Operation: ${c_reset}${c_notice}${operation}${c_reset}"
 
-    if [[ $modes != "" ]] ; then
-      echo -e "  Modes: $c_reset$c_notice$modes$c_reset"
+    if [[ ${modes} != "" ]] ; then
+      echo -e "  Modes: ${c_reset}${c_notice}${modes}${c_reset}"
     fi
 
-    if [[ $defines != "" ]] ; then
-      echo -e "  Defines: $c_reset$c_notice$defines$c_reset"
+    if [[ ${defines} != "" ]] ; then
+      echo -e "  Defines: ${c_reset}${c_notice}${defines}${c_reset}"
     fi
   fi
 
-  # cleanup and return.
+  # Clean up and return.
   unset process_post_main
   unset process_post_path_fix
+
   return 0
 }
 
 process_post_path_fix() {
-  echo -n $* | sed -e "s|^${path_directory_separator}${path_directory_separator}*|${path_directory_separator}|" -e "s|${path_directory_separator}*$|${path_directory_separator}|"
+  echo -n ${*} | sed -e "s|^${path_directory_separator}${path_directory_separator}*|${path_directory_separator}|" -e "s|${path_directory_separator}*$|${path_directory_separator}|"
 }
 
-# note: "$@" is necessary to preserve quoted arguments when passing to function.
-process_post_main "$@"
+# Note: "${@}" is necessary to preserve quoted arguments when passing to function.
+process_post_main "${@}"
diff --git a/level_3/fake/data/build/process_pre.sh b/level_3/fake/data/build/process_pre.sh
index 0eb3b56..6d6d1f5 100755
--- a/level_3/fake/data/build/process_pre.sh
+++ b/level_3/fake/data/build/process_pre.sh
@@ -16,7 +16,7 @@ process_pre_main() {
   local p=
   local t=0
 
-  # custom color codes.
+  # Custom color codes.
   local c_reset="\\033[0m"
   local c_title="\\033[1;33m"
   local c_error="\\033[1;31m"
@@ -27,7 +27,7 @@ process_pre_main() {
   local c_subtle="\\033[1;30m"
   local c_prefix="\\"
 
-  # the supported parameters.
+  # The supported parameters.
   local operation=
   local defines=
   local modes=
@@ -39,7 +39,7 @@ process_pre_main() {
   local path_work=
   local verbosity=normal
 
-  # generated paths and standard paths.
+  # Generated paths and standard paths.
   local path_directory_separator="/"
   local path_data_build=
   local path_documents="documents/"
@@ -57,12 +57,12 @@ process_pre_main() {
   local path_work_programs_shared=
   local path_work_programs_static=
 
-  # generated file paths.
+  # Generated file paths.
   local file_data_build_dependencies=
   local file_data_build_settings=
   local file_documents_readme=
 
-  # standard build paths.
+  # Standard build paths.
   local path_build_documents=
   local path_build_includes=
   local path_build_libraries=
@@ -77,87 +77,88 @@ process_pre_main() {
   local path_build_programs_static=
   local path_build_settings=
 
-  # grab all supported parameters, ignoring duplicates.
-  if [[ $# -gt 0 ]] ; then
-    t=$#
+  # Grab all supported parameters, ignoring duplicates.
+  if [[ ${#} -gt 0 ]] ; then
+    t=${#}
 
-    while [[ $i -lt $t ]] ; do
-      let i=$i+1
+    while [[ ${i} -lt ${t} ]] ; do
+
+      let i++
       p="${!i}"
 
-      if [[ $grab_next == "" ]] ; then
-        if [[ $p == "build" || $p == "clean" || $p == "make" || $p == "skeleton" ]] ; then
-          if [[ $operation == "" ]] ; then
-            operation=$p
+      if [[ ${grab_next} == "" ]] ; then
+        if [[ ${p} == "build" || ${p} == "clean" || ${p} == "make" || ${p} == "skeleton" ]] ; then
+          if [[ ${operation} == "" ]] ; then
+            operation=${p}
           fi
-        elif [[ $p == "-d" || $p == "--define" ]] ; then
+        elif [[ ${p} == "-d" || ${p} == "--define" ]] ; then
           grab_next="defines"
-        elif [[ $p == "-m" || $p == "--mode" ]] ; then
+        elif [[ ${p} == "-m" || ${p} == "--mode" ]] ; then
           grab_next="modes"
-        elif [[ $p == "-p" || $p == "--process" ]] ; then
+        elif [[ ${p} == "-p" || ${p} == "--process" ]] ; then
           grab_next="process"
-        elif [[ $p == "-s" || $p == "--settings" ]] ; then
+        elif [[ ${p} == "-s" || ${p} == "--settings" ]] ; then
           grab_next="file_settings"
-        elif [[ $p == "-b" || $p == "--build" ]] ; then
+        elif [[ ${p} == "-b" || ${p} == "--build" ]] ; then
           grab_next="path_build"
-        elif [[ $p == "-D" || $p == "--data" ]] ; then
+        elif [[ ${p} == "-D" || ${p} == "--data" ]] ; then
           grab_next="path_data"
-        elif [[ $p == "-S" || $p == "--sources" ]] ; then
+        elif [[ ${p} == "-S" || ${p} == "--sources" ]] ; then
           grab_next="path_sources"
-        elif [[ $p == "-w" || $p == "--work" ]] ; then
+        elif [[ ${p} == "-w" || ${p} == "--work" ]] ; then
           grab_next="path_work"
-        elif [[ $p == "+D" || $p == "++debug" ]] ; then
+        elif [[ ${p} == "+D" || ${p} == "++debug" ]] ; then
           verbosity=debug
-        elif [[ $p == "+E" || $p == "++error" ]] ; then
+        elif [[ ${p} == "+E" || ${p} == "++error" ]] ; then
           verbosity=error
-        elif [[ $p == "+N" || $p == "++normal" ]] ; then
+        elif [[ ${p} == "+N" || ${p} == "++normal" ]] ; then
           verbosity=normal
-        elif [[ $p == "+Q" || $p == "++quiet" ]] ; then
+        elif [[ ${p} == "+Q" || ${p} == "++quiet" ]] ; then
           verbosity=quiet
-        elif [[ $p == "+V" || $p == "++verbose" ]] ; then
+        elif [[ ${p} == "+V" || ${p} == "++verbose" ]] ; then
           verbosity=verbose
-        elif [[ $p == "+l" || $p == "++light" ]] ; then
+        elif [[ ${p} == "+l" || ${p} == "++light" ]] ; then
           do_color=light
-        elif [[ $p == "+d" || $p == "++dark" ]] ; then
+        elif [[ ${p} == "+d" || ${p} == "++dark" ]] ; then
           do_color=dark
-        elif [[ $p == "+n" || $p == "++no_color" ]] ; then
+        elif [[ ${p} == "+n" || ${p} == "++no_color" ]] ; then
           do_color=none
         fi
       else
-        if [[ $grab_next == "defines" ]] ; then
-          if [[ $defines == "" ]] ; then
-            defines=$p
+        if [[ ${grab_next} == "defines" ]] ; then
+          if [[ ${defines} == "" ]] ; then
+            defines=${p}
           else
-            defines="$defines $p"
+            defines="${defines} ${p}"
           fi
-        elif [[ $grab_next == "modes" ]] ; then
-          if [[ $modes == "" ]] ; then
-            modes=$p
+        elif [[ ${grab_next} == "modes" ]] ; then
+          if [[ ${modes} == "" ]] ; then
+            modes=${p}
           else
-            modes="$modes $p"
+            modes="${modes} ${p}"
           fi
-        elif [[ $grab_next == "process" ]] ; then
-          process="$p"
-        elif [[ $grab_next == "file_settings" ]] ; then
-          file_settings="$p"
-        elif [[ $grab_next == "path_build" ]] ; then
-          path_build=$(process_pre_path_fix $p)
-        elif [[ $grab_next == "path_source_build" ]] ; then
-          path_source_build=$(process_pre_path_fix $p)
-        elif [[ $grab_next == "path_source_codes" ]] ; then
-          path_source_codes=$(process_pre_path_fix $p)
-        elif [[ $grab_next == "path_source_common" ]] ; then
-          path_source_common=$(process_pre_path_fix $p)
-        elif [[ $grab_next == "path_source_data" ]] ; then
-          path_source_data=$(process_pre_path_fix $p)
-        elif [[ $grab_next == "path_source_documents" ]] ; then
-          path_source_documents=$(process_pre_path_fix $p)
-        elif [[ $grab_next == "path_source_licenses" ]] ; then
-          path_source_licenses=$(process_pre_path_fix $p)
-        elif [[ $grab_next == "path_source_settings" ]] ; then
-          path_source_settings=$(process_pre_path_fix $p)
-        elif [[ $grab_next == "path_work" ]] ; then
-          path_work=$(process_pre_path_fix $p)
+        elif [[ ${grab_next} == "process" ]] ; then
+          process="${p}"
+        elif [[ ${grab_next} == "file_settings" ]] ; then
+          file_settings="${p}"
+        elif [[ ${grab_next} == "path_build" ]] ; then
+          path_build=$(process_pre_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_build" ]] ; then
+          path_source_build=$(process_pre_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_codes" ]] ; then
+          path_source_codes=$(process_pre_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_common" ]] ; then
+          path_source_common=$(process_pre_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_data" ]] ; then
+          path_source_data=$(process_pre_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_documents" ]] ; then
+          path_source_documents=$(process_pre_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_licenses" ]] ; then
+          path_source_licenses=$(process_pre_path_fix ${p})
+        elif [[ ${grab_next} == "path_source_settings" ]] ; then
+          path_source_settings=$(process_pre_path_fix ${p})
+        elif [[ ${grab_next} == "path_work" ]] ; then
+          path_work=$(process_pre_path_fix ${p})
         fi
 
         grab_next=
@@ -167,14 +168,14 @@ process_pre_main() {
     p=
   fi
 
-  if [[ $do_color == "light" ]] ; then
+  if [[ ${do_color} == "light" ]] ; then
     c_error="\\033[1;31m"
     c_warning="\\033[0;31m"
     c_title="\\033[1;34m"
     c_highlight="\\033[0;34m"
     c_notice="\\033[0;01m"
     c_important="\\033[0;35m"
-  elif [[ $do_color == "none" ]] ; then
+  elif [[ ${do_color} == "none" ]] ; then
     c_reset=
     c_title=
     c_error=
@@ -187,64 +188,65 @@ process_pre_main() {
   fi
 
   # update paths based on parameters.
-  path_data_build="${path_data}build$path_directory_separator"
-
-  path_sources_bash="${path_sources}bash$path_directory_separator"
-  path_sources_c="${path_sources}c$path_directory_separator"
-  path_sources_cpp="${path_sources}c++$path_directory_separator"
-
-  path_build_documents="${path_build}documents$path_directory_separator"
-  path_build_includes="${path_build}includes$path_directory_separator"
-  path_build_libraries="${path_build}libraries$path_directory_separator"
-  path_build_libraries_script="${path_build_libraries}script$path_directory_separator"
-  path_build_libraries_shared="${path_build_libraries}shared$path_directory_separator"
-  path_build_libraries_static="${path_build_libraries}static$path_directory_separator"
-  path_build_objects="${path_build}objects$path_directory_separator"
-  path_build_process="${path_build}process$path_directory_separator"
-  path_build_programs="${path_build}programs$path_directory_separator"
-  path_build_programs_script="${path_build_programs}script$path_directory_separator"
-  path_build_programs_shared="${path_build_programs}shared$path_directory_separator"
-  path_build_programs_static="${path_build_programs}static$path_directory_separator"
-  path_build_settings="${path_build}settings$path_directory_separator"
-
-  if [[ $path_work != "" ]] ; then
-    path_work_includes="${path_work}includes$path_directory_separator"
-    path_work_libraries="${path_work_libraries}libraries$path_directory_separator"
-    path_work_libraries_script="${path_work_libraries_script}script$path_directory_separator"
-    path_work_libraries_shared="${path_work_libraries_shared}shared$path_directory_separator"
-    path_work_libraries_static="${path_work_libraries_static}static$path_directory_separator"
-    path_work_programs="${path_work_programs}programs$path_directory_separator"
-    path_work_programs_script="${path_work_programs_script}script$path_directory_separator"
-    path_work_programs_shared="${path_work_programs_shared}shared$path_directory_separator"
-    path_work_programs_static="${path_work_programs_static}static$path_directory_separator"
+  path_data_build="${path_data}build${path_directory_separator}"
+
+  path_sources_bash="${path_sources}bash${path_directory_separator}"
+  path_sources_c="${path_sources}c${path_directory_separator}"
+  path_sources_cpp="${path_sources}c++${path_directory_separator}"
+
+  path_build_documents="${path_build}documents${path_directory_separator}"
+  path_build_includes="${path_build}includes${path_directory_separator}"
+  path_build_libraries="${path_build}libraries${path_directory_separator}"
+  path_build_libraries_script="${path_build_libraries}script${path_directory_separator}"
+  path_build_libraries_shared="${path_build_libraries}shared${path_directory_separator}"
+  path_build_libraries_static="${path_build_libraries}static${path_directory_separator}"
+  path_build_objects="${path_build}objects${path_directory_separator}"
+  path_build_process="${path_build}process${path_directory_separator}"
+  path_build_programs="${path_build}programs${path_directory_separator}"
+  path_build_programs_script="${path_build_programs}script${path_directory_separator}"
+  path_build_programs_shared="${path_build_programs}shared${path_directory_separator}"
+  path_build_programs_static="${path_build_programs}static${path_directory_separator}"
+  path_build_settings="${path_build}settings${path_directory_separator}"
+
+  if [[ ${path_work} != "" ]] ; then
+    path_work_includes="${path_work}includes${path_directory_separator}"
+    path_work_libraries="${path_work_libraries}libraries${path_directory_separator}"
+    path_work_libraries_script="${path_work_libraries_script}script${path_directory_separator}"
+    path_work_libraries_shared="${path_work_libraries_shared}shared${path_directory_separator}"
+    path_work_libraries_static="${path_work_libraries_static}static${path_directory_separator}"
+    path_work_programs="${path_work_programs}programs${path_directory_separator}"
+    path_work_programs_script="${path_work_programs_script}script${path_directory_separator}"
+    path_work_programs_shared="${path_work_programs_shared}shared${path_directory_separator}"
+    path_work_programs_static="${path_work_programs_static}static${path_directory_separator}"
   fi
 
   file_data_build_dependencies="${path_data_build}dependencies"
   file_data_build_settings="${path_data_build}settings"
   file_documents_readme="${path_documents}readme"
 
-  if [[ $verbosity != "quiet" && $verbosity != "error" ]] ; then
+  if [[ ${verbosity} != "quiet" && ${verbosity} != "error" ]] ; then
     echo
-    echo -e "${c_title}Processing Operation: $c_reset$c_notice$operation$c_reset"
+    echo -e "${c_title}Processing Operation: ${c_reset}${c_notice}${operation}${c_reset}"
 
-    if [[ $modes != "" ]] ; then
-      echo -e "  Modes: $c_reset$c_notice$modes$c_reset"
+    if [[ ${modes} != "" ]] ; then
+      echo -e "  Modes: ${c_reset}${c_notice}${modes}${c_reset}"
     fi
 
-    if [[ $defines != "" ]] ; then
-      echo -e "  Defines: $c_reset$c_notice$defines$c_reset"
+    if [[ ${defines} != "" ]] ; then
+      echo -e "  Defines: ${c_reset}${c_notice}${defines}${c_reset}"
     fi
   fi
 
-  # cleanup and return.
+  # Clean up and return.
   unset process_pre_main
   unset process_pre_path_fix
+
   return 0
 }
 
 process_pre_path_fix() {
-  echo -n $* | sed -e "s|^${path_directory_separator}${path_directory_separator}*|${path_directory_separator}|" -e "s|${path_directory_separator}*$|${path_directory_separator}|"
+  echo -n ${*} | sed -e "s|^${path_directory_separator}${path_directory_separator}*|${path_directory_separator}|" -e "s|${path_directory_separator}*$|${path_directory_separator}|"
 }
 
-# note: "$@" is necessary to preserve quoted arguments when passing to function.
-process_pre_main "$@"
+# Note: "${@}" is necessary to preserve quoted arguments when passing to function.
+process_pre_main "${@}"
diff --git a/level_3/fake/data/projects/go/example_go/data/build/process_post.sh b/level_3/fake/data/projects/go/example_go/data/build/process_post.sh
index a5fc4d8..b9b5460 100755
--- a/level_3/fake/data/projects/go/example_go/data/build/process_post.sh
+++ b/level_3/fake/data/projects/go/example_go/data/build/process_post.sh
@@ -3,6 +3,7 @@
 main() {
   local IFS=$' \t\n' # Prevent IFS exploits by overriding with a local scope.
 
+  unset main
 }
 
 main ${*}
diff --git a/level_3/fake/data/projects/go/example_go/data/build/process_pre.sh b/level_3/fake/data/projects/go/example_go/data/build/process_pre.sh
index a5fc4d8..b9b5460 100755
--- a/level_3/fake/data/projects/go/example_go/data/build/process_pre.sh
+++ b/level_3/fake/data/projects/go/example_go/data/build/process_pre.sh
@@ -3,6 +3,7 @@
 main() {
   local IFS=$' \t\n' # Prevent IFS exploits by overriding with a local scope.
 
+  unset main
 }
 
 main ${*}