Improve shellcheck compatibility

.hooks/pre-commit.sh

@@ -21,7 +21,8 @@ _mainScript_() {
 
         [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
-        local _gitDiffTmp="${TMP_DIR}/diff.txt"
+        local _gitDiffTmp
+        _gitDiffTmp="${TMP_DIR}/diff.txt"
 
         if [ -f "${STOP_WORD_FILE}" ]; then
 
@@ -32,7 +33,7 @@ _mainScript_() {
             debug "$(basename "${1}"): Checking for stop words..."
 
             # remove blank lines from stopwords file
-            cat "${STOP_WORD_FILE}" | sed '/^$/d' >"${TMP_DIR}/pattern_file.txt"
+            sed '/^$/d' "${STOP_WORD_FILE}" >"${TMP_DIR}/pattern_file.txt"
 
             # Add diff to a temporary file
             git diff --cached -- "${1}" | grep '^+' >"${_gitDiffTmp}"
@@ -60,9 +61,11 @@ _mainScript_() {
         # USAGE:
         #					_ignoreSymlinks_
 
-        local _gitIgnore="${GITROOT}/.gitignore"
+        local _gitIgnore
-        local _haveSymlink=false
+        local _haveSymlink
         local _f
+        _gitIgnore="${GITROOT}/.gitignore"
+        _haveSymlink=false
 
         debug "Checking for symlinks..."
 
@@ -81,7 +84,7 @@ _mainScript_() {
         done
 
         # Work on files that were mistakenly staged
-        for f in $(git status --porcelain | grep '^A' | sed 's/^A //'); do
+        for _f in $(git status --porcelain | grep '^A' | sed 's/^A //'); do
             if [ -L "${_f}" ]; then
                 if ! grep "${_f}" "${_gitIgnore}"; then
                     if printf "\n%s" "${_f}" >>"${_gitIgnore}"; then
@@ -115,7 +118,8 @@ _mainScript_() {
 
         [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
-        local _filename="$(_fileName_ "${1}")"
+        local _filename
+        _filename="$(_fileName_ "${1}")"
 
         if command -v yaml-lint >/dev/null; then
             debug "${_filename}: Linting YAML..."
@@ -159,14 +163,22 @@ _mainScript_() {
 
         [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
-        local _filename="$(_fileName_ "${1}")"
+        local _filename
-
+        _filename="$(_fileName_ "${1}")"
         if command -v shellcheck >/dev/null; then
             debug "${_filename}: Linting shellscript..."
-            if shellcheck --exclude=2016,2059,2001,2002,2148,1090,2162,2005,2034,2154,2086,2155,2181,2164,2120,2119,1083,1117,2207,1091 "${1}"; then
+            if [[ ${_filename} == "*.j2" ]]; then
-                return 0
+                if shellcheck -x --exclude=1009,1054,1056,1072,1073,1083,2001,2148 "${1}"; then
+                    return 0
+                else
+                    return 1
+                fi
             else
-                return 1
+                if shellcheck -x --exclude=2001,2148 "${1}"; then
+                    return 0
+                else
+                    return 1
+                fi
             fi
         else
             notice "Shellcheck not installed.  Continuing..."
@@ -187,9 +199,11 @@ _mainScript_() {
 
         [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
-        local _filename="$(_fileName_ "${1}")"
+        local _filename
+        _filename="$(_fileName_ "${1}")"
+
         debug "${_filename}: Runing bats tests..."
-        if bats -t $1; then
+        if bats -t "$1"; then
             return 0
         else
             return 1
@@ -198,7 +212,7 @@ _mainScript_() {
 
     _lintAnsible_() {
         # DESC:
-        #					Lint Ansible YMAL files staged for commit.  Requires ansible-lint to be installed.
+        #					Lint Ansible YAML files staged for commit.  Requires ansible-lint to be installed.
         # ARGS:
         #					$1 (Required):  Path to file
         # OUTS:
@@ -209,7 +223,8 @@ _mainScript_() {
 
         [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
-        local _filename="$(_fileName_ "${1}")"
+        local _filename
+        _filename="$(_fileName_ "${1}")"
 
         if ! command -v ansible-lint &>/dev/null; then
             notice "ansible-lint not intstalled. Continuing..."
@@ -409,7 +424,7 @@ _setColors_() {
     # OUTS:
     #         None
     # USAGE:
-    #         echo "${blue}Some text${reset}"
+    #         printf "%s\n" "${blue}Some text${reset}"
 
     if tput setaf 1 >/dev/null 2>&1; then
         bold=$(tput bold)
@@ -440,6 +455,7 @@ _setColors_() {
         bold="\033[4;37m"
         reset="\033[0m"
         underline="\033[4;37m"
+        # shellcheck disable=SC2034
         reverse=""
         white="\033[0;37m"
         blue="\033[0;34m"
@@ -497,9 +513,9 @@ _alert_() {
         _color="${purple}"
     elif [ "${_alertType}" == "header" ]; then
         _color="${bold}${white}${underline}"
-    elif [ ${_alertType} == "notice" ]; then
+    elif [ "${_alertType}" == "notice" ]; then
         _color="${bold}"
-    elif [ ${_alertType} == "input" ]; then
+    elif [ "${_alertType}" == "input" ]; then
         _color="${bold}${underline}"
     elif [ "${_alertType}" = "dryrun" ]; then
         _color="${blue}"
@@ -534,9 +550,10 @@ _alert_() {
         [[ ! -f ${LOGFILE} ]] && touch "${LOGFILE}"
 
         # Don't use colors in logs
-        local cleanmessage="$(echo "${_message}" | sed -E 's/(\x1b)?\[(([0-9]{1,2})(;[0-9]{1,3}){0,2})?[mGK]//g')"
+        local _cleanmessage
+        _cleanmessage="$(printf "%s" "${_message}" | sed -E 's/(\x1b)?\[(([0-9]{1,2})(;[0-9]{1,3}){0,2})?[mGK]//g')"
         # Print message to log file
-        printf "%s [%7s] %s %s\n" "$(date +"%b %d %R:%S")" "${_alertType}" "[$(/bin/hostname)]" "${cleanmessage}" >>"${LOGFILE}"
+        printf "%s [%7s] %s %s\n" "$(date +"%b %d %R:%S")" "${_alertType}" "[$(/bin/hostname)]" "${_cleanmessage}" >>"${LOGFILE}"
     }
 
     # Write specified log level data to logfile
@@ -611,7 +628,7 @@ _printFuncStack_() {
     _funcStackResponse=()
     for ((_i = 1; _i < ${#BASH_SOURCE[@]}; _i++)); do
         case "${FUNCNAME[$_i]}" in "_alert_" | "_trapCleanup_" | fatal | error | warning | notice | info | debug | dryrun | header | success) continue ;; esac
-        _funcStackResponse+=("${FUNCNAME[$_i]}:$(basename ${BASH_SOURCE[$_i]}):${BASH_LINENO[_i - 1]}")
+        _funcStackResponse+=("${FUNCNAME[$_i]}:$(basename "${BASH_SOURCE[$_i]}"):${BASH_LINENO[_i - 1]}")
     done
     printf "( "
     printf %s "${_funcStackResponse[0]}"
@@ -645,7 +662,7 @@ _safeExit_() {
     fi
 
     trap - INT TERM EXIT
-    exit ${1:-0}
+    exit "${1:-0}"
 }
 
 _trapCleanup_() {
@@ -659,7 +676,7 @@ _trapCleanup_() {
     #         $5:  Scriptname
     #         $6:  $BASH_SOURCE
     # USAGE:
-    #         trap '_trapCleanup_ ${LINENO} ${BASH_LINENO} "${BASH_COMMAND}" "${FUNCNAME[*]}" "${0}" "${BASH_SOURCE[0]}"' EXIT INT TERM SIGINT SIGQUIT SIGTERM
+    #         trap '_trapCleanup_ ${LINENO} ${BASH_LINENO} "${BASH_COMMAND}" "${FUNCNAME[*]}" "${0}" "${BASH_SOURCE[0]}"' EXIT INT TERM SIGINT SIGQUIT SIGTERM ERR
     # OUTS:
     #         Exits script with error code 1
 
@@ -671,7 +688,9 @@ _trapCleanup_() {
     local _sourced="${6:-}"
 
     if [[ "$(declare -f "fatal")" && "$(declare -f "_printFuncStack_")" ]]; then
-        _funcstack="'$(echo "${_funcstack}" | sed -E 's/ / < /g')'"
+
+        _funcstack="'$(printf "%s" "${_funcstack}" | sed -E 's/ / < /g')'"
+
         if [[ ${_script##*/} == "${_sourced##*/}" ]]; then
             fatal "${7:-} command: '${_command}' (line: ${_line}) [func: $(_printFuncStack_)]"
         else
@@ -760,7 +779,7 @@ _setPATH_() {
 
     for _newPath in "$@"; do
         if [ -d "${_newPath}" ]; then
-            if ! echo "${PATH}" | grep -Eq "(^|:)${_newPath}($|:)"; then
+            if ! printf "%s" "${PATH}" | grep -Eq "(^|:)${_newPath}($|:)"; then
                 if PATH="${_newPath}:${PATH}"; then
                     debug "Added '${_newPath}' to PATH"
                 else
@@ -850,6 +869,7 @@ _parseOptions_() {
     unset _options
 
     # Read the options and set stuff
+    # shellcheck disable=SC2034
     while [[ ${1:-} == -?* ]]; do
         case $1 in
             # Custom options

README.md

@@ -77,7 +77,7 @@ IFS=$' \n\t'
 # set -o xtrace
 
 # Source utility functions
-_sourceUtilities_ "${HOME}/repos/shell-scripting-templates/utilities"
+_sourceUtilities_
 
 # Initialize color constants
 _setColors_
@@ -117,11 +117,11 @@ Within the `utilities` folder are many BASH functions meant to ease development
 
 #### 1. Copy and paste into standaloneTemplate.sh
 
-You can copy any complete function from the Utilities and place it into your script. Copy it beneath the `### Custom utility functions` line.
+You can copy any complete function from the Utilities and place it into your script. Copy it beneath the `### Custom utility functions` line. Scripts created this way are fully portable among systems
 
 #### 2. Source all the utility files by using template.sh
 
-`template.sh` contains a function to source all the utility files into the script. Beware, this will require a full path to the location of this repository and will result in a script that will not be portable to other systems.
+`template.sh` contains a function to source all the utility files into the script. Beware, that you'll need to update the paths within the `_sourceUtilities_` function to ensure your script can find this repository.
 
 ## alerts.bash
 
@@ -304,14 +304,14 @@ Functions required to allow the script template and alert functions to be used
 
 # Coding conventions
 
-Where possible, I follow [defensive BASH programming](https://kfirlavi.herokuapp.com/blog/2012/11/14/defensive-bash-programming/) principles.
-
 - Function names use camel case surrounded by underscores: `_nameOfFunction_`
 - Local variable names use camel case with a starting underscore: `_localVariable`
 - Global variables are in ALL_CAPS with underscores seperating words
 - Exceptions to the variable an function naming rules are made for alerting functions and colors to ease my speed of programming. (Breaking years of habits is hard...) I.e. `notice "Some log item: ${blue}blue text${reset}` Where `notice` is a function and `$blue` and `$reset` are global variables but are lowercase.
-- Variables are always surrounded by quotes and brackets `"${1}"` (It's verbose, but a safe practice)
+- Variables are always surrounded by quotes and brackets `"${1}"` (Overly verbose true, but a safe practice)
 - Formatting is provided by [shfmt](https://github.com/mvdan/sh) using 4 spaces for indentation
+- All scripts and functions are fully [Shellcheck](https://github.com/koalaman/shellcheck) compliant
+- Where possible, I follow [defensive BASH programming](https://kfirlavi.herokuapp.com/blog/2012/11/14/defensive-bash-programming/) principles.
 
 ## A Note on Code Reuse and Prior Art
 

template.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# shellcheck source-path=SCRIPTDIR/../shell-scripting-templates/utilities
 
 _mainScript_() {
     # Replace everything in _mainScript_() with your script's code
@@ -52,7 +53,9 @@ _trapCleanup_() {
     local _sourced="${6:-}"
 
     if [[ "$(declare -f "fatal")" && "$(declare -f "_printFuncStack_")" ]]; then
-        _funcstack="'$(echo "${_funcstack}" | sed -E 's/ / < /g')'"
+
+        _funcstack="'$(printf "%s" "${_funcstack}" | sed -E 's/ / < /g')'"
+
         if [[ ${_script##*/} == "${_sourced##*/}" ]]; then
             fatal "${7:-} command: '${_command}' (line: ${_line}) [func: $(_printFuncStack_)]"
         else
@@ -69,58 +72,123 @@ _trapCleanup_() {
     fi
 }
 
+_findBaseDir_() {
+    # DESC:
+    #         Locates the real directory of the script being run. Similar to GNU readlink -n
+    # ARGS:
+    #         None
+    # OUTS:
+    #         stdout: prints result
+    # USAGE:
+    #         baseDir="$(_findBaseDir_)"
+    #         cp "$(_findBaseDir_ "somefile.txt")" "other_file.txt"
+
+    local _source
+    local _dir
+
+    # Is file sourced?
+    [[ $_ != "$0" ]] \
+        && _source="${BASH_SOURCE[1]}" \
+        || _source="${BASH_SOURCE[0]}"
+
+    while [ -h "${_source}" ]; do # Resolve $SOURCE until the file is no longer a symlink
+        _dir="$(cd -P "$(dirname "${_source}")" && pwd)"
+        _source="$(readlink "${_source}")"
+        [[ ${_source} != /* ]] && _source="${_dir}/${_source}" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+    done
+    printf "%s\n" "$(cd -P "$(dirname "${_source}")" && pwd)"
+}
+
 _sourceUtilities_() {
     # DESC:
-    #					Sources bash utility functions
+    #         Sources utility functions.  Absolute paths are required for shellcheck to correctly
+    #         parse the sourced files
     # ARGS:
-    #					$1 (required): Directories or files containing utility functions
+    #					NONE
     # OUTS:
-    #					0 if success
+    #					 0:  Success
-    #         1 if failure
+    #					 1:  Failure
     # USAGE:
-    #					_sourceHelperFiles_ "/path/to/dir" "path/to/file.sh"
+    #					_sourceUtilities_
 
-    local _filesSourced=true
+    local _utilsPath
+    _utilsPath="$(_findBaseDir_)/../shell-scripting-templates/utilities/"
 
-    [[ $# == 0 ]] && _filesSourced=false
+    if [ -f "${_utilsPath}/alerts.bash" ]; then
-
+        source "${_utilsPath}/alerts.bash"
-    local _fileToSource
+    else
-    local _location
+        printf "%s\n" "ERROR: alerts.bash not found"
-    if [ ${_filesSourced} == true ]; then
+        exit 1
-        for _location in "$@"; do
-            if [[ -d ${_location} ]]; then
-                for _fileToSource in "${_location}"/*.{sh,bash}; do
-                    if [[ -f ${_fileToSource} ]]; then
-                        if ! source "${_fileToSource}"; then
-                            _filesSourced=false
-                            break 2
-                        fi
-                    else
-                        _filesSourced=false
-                        break 2
-                    fi
-                done
-            elif [[ -f ${_location} ]] && [[ ${_location} =~ .*\.(sh|bash)$ ]]; then
-                if ! source "${_fileToSource}"; then
-                    _filesSourced=false
-                    break
-                fi
-            else
-                _filesSourced=false
-                break
-            fi
-        done
     fi
 
-    if [ ${_filesSourced} == true ]; then
+    if [ -f "${_utilsPath}/arrays.bash" ]; then
-        return 0
+        source "${_utilsPath}/arrays.bash"
     else
-        printf "%s\n" "ERROR: Invalid argument to ${FUNCNAME[0]}: ${_location}"
+        printf "%s\n" "ERROR: arrays.bash not found"
-        if [ "$(declare -f "_safeExit_")" ]; then
+        exit 1
-            _safeExit_ 1
+    fi
-        else
+
-            exit 1
+    if [ -f "${_utilsPath}/checks.bash" ]; then
-        fi
+        source "${_utilsPath}/checks.bash"
+    else
+        printf "%s\n" "ERROR: checks.bash not found"
+        exit 1
+    fi
+
+    if [ -f "${_utilsPath}/dates.bash" ]; then
+        source "${_utilsPath}/dates.bash"
+    else
+        printf "%s\n" "ERROR: dates.bash not found"
+        exit 1
+    fi
+
+    if [ -f "${_utilsPath}/debug.bash" ]; then
+        source "${_utilsPath}/debug.bash"
+    else
+        printf "%s\n" "ERROR: debug.bash not found"
+        exit 1
+    fi
+
+    if [ -f "${_utilsPath}/files.bash" ]; then
+        source "${_utilsPath}/files.bash"
+    else
+        printf "%s\n" "ERROR: files.bash not found"
+        exit 1
+    fi
+
+    if [ -f "${_utilsPath}/macOS.bash" ]; then
+        source "${_utilsPath}/macOS.bash"
+    else
+        printf "%s\n" "ERROR: macOS.bash not found"
+        exit 1
+    fi
+
+    if [ -f "${_utilsPath}/misc.bash" ]; then
+        source "${_utilsPath}/misc.bash"
+    else
+        printf "%s\n" "ERROR: misc.bash not found"
+        exit 1
+    fi
+
+    if [ -f "${_utilsPath}/services.bash" ]; then
+        source "${_utilsPath}/services.bash"
+    else
+        printf "%s\n" "ERROR: services.bash not found"
+        exit 1
+    fi
+
+    if [ -f "${_utilsPath}/strings.bash" ]; then
+        source "${_utilsPath}/strings.bash"
+    else
+        printf "%s\n" "ERROR: strings.bash not found"
+        exit 1
+    fi
+
+    if [ -f "${_utilsPath}/template_utils.bash" ]; then
+        source "${_utilsPath}/template_utils.bash"
+    else
+        printf "%s\n" "ERROR: template_utils.bash not found"
+        exit 1
     fi
 
 }
@@ -170,6 +238,7 @@ _parseOptions_() {
     unset _options
 
     # Read the options and set stuff
+    # shellcheck disable=SC2034
     while [[ ${1:-} == -?* ]]; do
         case $1 in
             # Custom options
@@ -268,7 +337,7 @@ IFS=$' \n\t'
 # set -o xtrace
 
 # Source utility functions
-_sourceUtilities_ "${HOME}/repos/shell-scripting-templates/utilities"
+_sourceUtilities_
 
 # Initialize color constants
 _setColors_

template_standalone.sh

@@ -40,7 +40,7 @@ _setColors_() {
     # OUTS:
     #         None
     # USAGE:
-    #         echo "${blue}Some text${reset}"
+    #         printf "%s\n" "${blue}Some text${reset}"
 
     if tput setaf 1 >/dev/null 2>&1; then
         bold=$(tput bold)
@@ -71,6 +71,7 @@ _setColors_() {
         bold="\033[4;37m"
         reset="\033[0m"
         underline="\033[4;37m"
+        # shellcheck disable=SC2034
         reverse=""
         white="\033[0;37m"
         blue="\033[0;34m"
@@ -128,9 +129,9 @@ _alert_() {
         _color="${purple}"
     elif [ "${_alertType}" == "header" ]; then
         _color="${bold}${white}${underline}"
-    elif [ ${_alertType} == "notice" ]; then
+    elif [ "${_alertType}" == "notice" ]; then
         _color="${bold}"
-    elif [ ${_alertType} == "input" ]; then
+    elif [ "${_alertType}" == "input" ]; then
         _color="${bold}${underline}"
     elif [ "${_alertType}" = "dryrun" ]; then
         _color="${blue}"
@@ -165,9 +166,10 @@ _alert_() {
         [[ ! -f ${LOGFILE} ]] && touch "${LOGFILE}"
 
         # Don't use colors in logs
-        local cleanmessage="$(echo "${_message}" | sed -E 's/(\x1b)?\[(([0-9]{1,2})(;[0-9]{1,3}){0,2})?[mGK]//g')"
+        local _cleanmessage
+        _cleanmessage="$(printf "%s" "${_message}" | sed -E 's/(\x1b)?\[(([0-9]{1,2})(;[0-9]{1,3}){0,2})?[mGK]//g')"
         # Print message to log file
-        printf "%s [%7s] %s %s\n" "$(date +"%b %d %R:%S")" "${_alertType}" "[$(/bin/hostname)]" "${cleanmessage}" >>"${LOGFILE}"
+        printf "%s [%7s] %s %s\n" "$(date +"%b %d %R:%S")" "${_alertType}" "[$(/bin/hostname)]" "${_cleanmessage}" >>"${LOGFILE}"
     }
 
     # Write specified log level data to logfile
@@ -242,7 +244,7 @@ _printFuncStack_() {
     _funcStackResponse=()
     for ((_i = 1; _i < ${#BASH_SOURCE[@]}; _i++)); do
         case "${FUNCNAME[$_i]}" in "_alert_" | "_trapCleanup_" | fatal | error | warning | notice | info | debug | dryrun | header | success) continue ;; esac
-        _funcStackResponse+=("${FUNCNAME[$_i]}:$(basename ${BASH_SOURCE[$_i]}):${BASH_LINENO[_i - 1]}")
+        _funcStackResponse+=("${FUNCNAME[$_i]}:$(basename "${BASH_SOURCE[$_i]}"):${BASH_LINENO[_i - 1]}")
     done
     printf "( "
     printf %s "${_funcStackResponse[0]}"
@@ -276,7 +278,7 @@ _safeExit_() {
     fi
 
     trap - INT TERM EXIT
-    exit ${1:-0}
+    exit "${1:-0}"
 }
 
 _trapCleanup_() {
@@ -290,7 +292,7 @@ _trapCleanup_() {
     #         $5:  Scriptname
     #         $6:  $BASH_SOURCE
     # USAGE:
-    #         trap '_trapCleanup_ ${LINENO} ${BASH_LINENO} "${BASH_COMMAND}" "${FUNCNAME[*]}" "${0}" "${BASH_SOURCE[0]}"' EXIT INT TERM SIGINT SIGQUIT SIGTERM
+    #         trap '_trapCleanup_ ${LINENO} ${BASH_LINENO} "${BASH_COMMAND}" "${FUNCNAME[*]}" "${0}" "${BASH_SOURCE[0]}"' EXIT INT TERM SIGINT SIGQUIT SIGTERM ERR
     # OUTS:
     #         Exits script with error code 1
 
@@ -302,7 +304,9 @@ _trapCleanup_() {
     local _sourced="${6:-}"
 
     if [[ "$(declare -f "fatal")" && "$(declare -f "_printFuncStack_")" ]]; then
-        _funcstack="'$(echo "${_funcstack}" | sed -E 's/ / < /g')'"
+
+        _funcstack="'$(printf "%s" "${_funcstack}" | sed -E 's/ / < /g')'"
+
         if [[ ${_script##*/} == "${_sourced##*/}" ]]; then
             fatal "${7:-} command: '${_command}' (line: ${_line}) [func: $(_printFuncStack_)]"
         else
@@ -391,7 +395,7 @@ _setPATH_() {
 
     for _newPath in "$@"; do
         if [ -d "${_newPath}" ]; then
-            if ! echo "${PATH}" | grep -Eq "(^|:)${_newPath}($|:)"; then
+            if ! printf "%s" "${PATH}" | grep -Eq "(^|:)${_newPath}($|:)"; then
                 if PATH="${_newPath}:${PATH}"; then
                     debug "Added '${_newPath}' to PATH"
                 else
@@ -481,6 +485,7 @@ _parseOptions_() {
     unset _options
 
     # Read the options and set stuff
+    # shellcheck disable=SC2034
     while [[ ${1:-} == -?* ]]; do
         case $1 in
             # Custom options

utilities/alerts.bash

@@ -1,4 +1,5 @@
 # Functions for providing alerts to the user and logging them
+# shellcheck disable=SC2034,SC2154
 
 _setColors_() {
     # DESC:
@@ -8,7 +9,7 @@ _setColors_() {
     # OUTS:
     #         None
     # USAGE:
-    #         echo "${blue}Some text${reset}"
+    #         printf "%s\n" "${blue}Some text${reset}"
 
     if tput setaf 1 >/dev/null 2>&1; then
         bold=$(tput bold)
@@ -39,6 +40,7 @@ _setColors_() {
         bold="\033[4;37m"
         reset="\033[0m"
         underline="\033[4;37m"
+        # shellcheck disable=SC2034
         reverse=""
         white="\033[0;37m"
         blue="\033[0;34m"
@@ -96,9 +98,9 @@ _alert_() {
         _color="${purple}"
     elif [ "${_alertType}" == "header" ]; then
         _color="${bold}${white}${underline}"
-    elif [ ${_alertType} == "notice" ]; then
+    elif [ "${_alertType}" == "notice" ]; then
         _color="${bold}"
-    elif [ ${_alertType} == "input" ]; then
+    elif [ "${_alertType}" == "input" ]; then
         _color="${bold}${underline}"
     elif [ "${_alertType}" = "dryrun" ]; then
         _color="${blue}"
@@ -133,9 +135,10 @@ _alert_() {
         [[ ! -f ${LOGFILE} ]] && touch "${LOGFILE}"
 
         # Don't use colors in logs
-        local cleanmessage="$(echo "${_message}" | sed -E 's/(\x1b)?\[(([0-9]{1,2})(;[0-9]{1,3}){0,2})?[mGK]//g')"
+        local _cleanmessage
+        _cleanmessage="$(printf "%s" "${_message}" | sed -E 's/(\x1b)?\[(([0-9]{1,2})(;[0-9]{1,3}){0,2})?[mGK]//g')"
         # Print message to log file
-        printf "%s [%7s] %s %s\n" "$(date +"%b %d %R:%S")" "${_alertType}" "[$(/bin/hostname)]" "${cleanmessage}" >>"${LOGFILE}"
+        printf "%s [%7s] %s %s\n" "$(date +"%b %d %R:%S")" "${_alertType}" "[$(/bin/hostname)]" "${_cleanmessage}" >>"${LOGFILE}"
     }
 
     # Write specified log level data to logfile
@@ -210,7 +213,7 @@ _printFuncStack_() {
     _funcStackResponse=()
     for ((_i = 1; _i < ${#BASH_SOURCE[@]}; _i++)); do
         case "${FUNCNAME[$_i]}" in "_alert_" | "_trapCleanup_" | fatal | error | warning | notice | info | debug | dryrun | header | success) continue ;; esac
-        _funcStackResponse+=("${FUNCNAME[$_i]}:$(basename ${BASH_SOURCE[$_i]}):${BASH_LINENO[_i - 1]}")
+        _funcStackResponse+=("${FUNCNAME[$_i]}:$(basename "${BASH_SOURCE[$_i]}"):${BASH_LINENO[_i - 1]}")
     done
     printf "( "
     printf %s "${_funcStackResponse[0]}"

utilities/arrays.bash

@@ -190,7 +190,7 @@ _forEachReject_() {
         fi
         declare -i _ret=$?
         if [[ ${_ret} -ne 0 ]]; then
-            echo "${_it}"
+            printf "%s\n" "${_it}"
         fi
     done
 }
@@ -211,7 +211,7 @@ _forEachSome_() {
 
     [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
     local _func="${1}"
-    local _IFS=$'\n'
+    local IFS=$'\n'
     while read -r _it; do
 
         if [[ ${_func} == *"$"* ]]; then

utilities/checks.bash

@@ -135,7 +135,7 @@ _isFQDN_() {
 
     local _input="${1}"
 
-    if printf "${_input}" | grep -Pq '(?=^.{4,253}$)(^(?:[a-zA-Z0-9](?:(?:[a-zA-Z0-9\-]){0,61}[a-zA-Z0-9])?\.)+([a-zA-Z]{2,}|xn--[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])$)'; then
+    if printf "%s" "${_input}" | grep -Pq '(?=^.{4,253}$)(^(?:[a-zA-Z0-9](?:(?:[a-zA-Z0-9\-]){0,61}[a-zA-Z0-9])?\.)+([a-zA-Z]{2,}|xn--[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])$)'; then
         return 0
     else
         return 1
@@ -218,7 +218,7 @@ _isDir_() {
     #					1 - Input is not a directory
     # USAGE:
     #         _varIsDir_ "${var}"
-    #         (_isDir_ "${var}") && echo "Is a directory" || echo "Not a directory"
+    #         (_isDir_ "${var}") && printf "Is a directory" || printf "Not a directory"
     # NOTES:
     #
 
@@ -274,7 +274,7 @@ _rootAvailable_() {
     #         https://github.com/ralish/bash-script-template
 
     local _superuser
-    local _testEUID
+
     if [[ ${EUID} -eq 0 ]]; then
         _superuser=true
     elif [[ -z ${1:-} ]]; then

utilities/dates.bash

@@ -46,7 +46,7 @@ _countdown_() {
         else
             echo "${_message} ${ii}"
         fi
-        sleep ${_sleepTime}
+        sleep "${_sleepTime}"
     done
 }
 
@@ -120,7 +120,7 @@ _fromSeconds_() {
     ((_h = ${1} / 3600))
     ((_m = (${1} % 3600) / 60))
     ((_s = ${1} % 60))
-    printf "%02d:%02d:%02d\n" ${_h} ${_m} ${_s}
+    printf "%02d:%02d:%02d\n" "${_h}" "${_m}" "${_s}"
 }
 
 _monthToNumber_() {
@@ -135,7 +135,9 @@ _monthToNumber_() {
 
     [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
-    local _mon="$(echo "$1" | tr '[:upper:]' '[:lower:]')"
+    local _mon
+    _mon="$(echo "$1" | tr '[:upper:]' '[:lower:]')"
+
     case "${_mon}" in
         january | jan | ja) echo 1 ;;
         february | feb | fe) echo 2 ;;
@@ -232,7 +234,7 @@ _parseDate_() {
     trap "$(shopt -p nocasematch)" RETURN # reset nocasematch when function exits
     shopt -s nocasematch                  # Use case-insensitive regex
 
-    debug "_parseDate_() input ${tan}${_stringToTest}${purple}"
+    debug "_parseDate_() input: ${_stringToTest}"
 
     # YYYY MM DD or YYYY-MM-DD
     _pat="(.*[^0-9]|^)((20[0-2][0-9])[-\.\/_ ]+([0-9]{1,2})[-\.\/_ ]+([0-9]{1,2}))([^0-9].*|$)"
@@ -242,25 +244,25 @@ _parseDate_() {
         PARSE_DATE_MONTH=$((10#${BASH_REMATCH[4]}))
         PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
         PARSE_DATE_DAY=$((10#${BASH_REMATCH[5]}))
-        debug "regex match: ${tan}YYYY-MM-DD${purple}"
+        debug "regex match: YYYY-MM-DD "
 
     # Month DD, YYYY
     elif [[ ${_stringToTest} =~ ((january|jan|ja|february|feb|fe|march|mar|ma|april|apr|ap|may|june|jun|july|jul|ju|august|aug|september|sep|october|oct|november|nov|december|dec)[-\./_ ]+([0-9]{1,2})(nd|rd|th|st)?,?[-\./_ ]+(20[0-2][0-9]))([^0-9].*|$) ]]; then
         PARSE_DATE_FOUND="${BASH_REMATCH[1]:-}"
-        PARSE_DATE_MONTH=$(_monthToNumber_ ${BASH_REMATCH[2]:-})
+        PARSE_DATE_MONTH=$(_monthToNumber_ "${BASH_REMATCH[2]:-}")
         PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH:-}")"
         PARSE_DATE_DAY=$((10#${BASH_REMATCH[3]:-}))
         PARSE_DATE_YEAR=$((10#${BASH_REMATCH[5]:-}))
-        debug "regex match: ${tan}Month DD, YYYY${purple}"
+        debug "regex match: Month DD, YYYY"
 
     # Month DD, YY
     elif [[ ${_stringToTest} =~ ((january|jan|ja|february|feb|fe|march|mar|ma|april|apr|ap|may|june|jun|july|jul|ju|august|aug|september|sep|october|oct|november|nov|december|dec)[-\./_ ]+([0-9]{1,2})(nd|rd|th|st)?,?[-\./_ ]+([0-9]{2}))([^0-9].*|$) ]]; then
         PARSE_DATE_FOUND="${BASH_REMATCH[1]}"
-        PARSE_DATE_MONTH=$(_monthToNumber_ ${BASH_REMATCH[2]})
+        PARSE_DATE_MONTH=$(_monthToNumber_ "${BASH_REMATCH[2]}")
         PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
         PARSE_DATE_DAY=$((10#${BASH_REMATCH[3]}))
         PARSE_DATE_YEAR="20$((10#${BASH_REMATCH[5]}))"
-        debug "regex match: ${tan}Month DD, YY${purple}"
+        debug "regex match: Month DD, YY"
 
     #  DD Month YYYY
     elif [[ ${_stringToTest} =~ (.*[^0-9]|^)(([0-9]{2})[-\./_ ]+(january|jan|ja|february|feb|fe|march|mar|ma|april|apr|ap|may|june|jun|july|jul|ju|august|aug|september|sep|october|oct|november|nov|december|dec),?[-\./_ ]+(20[0-2][0-9]))([^0-9].*|$) ]]; then
@@ -269,7 +271,7 @@ _parseDate_() {
         PARSE_DATE_MONTH="$(_monthToNumber_ "${BASH_REMATCH[4]}")"
         PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
         PARSE_DATE_YEAR=$((10#"${BASH_REMATCH[5]}"))
-        debug "regex match: ${tan}DD Month, YYYY${purple}"
+        debug "regex match: DD Month, YYYY"
 
     # MM-DD-YYYY  or  DD-MM-YYYY
     elif [[ ${_stringToTest} =~ (.*[^0-9]|^)(([0-9]{1,2})[-\.\/_ ]+([0-9]{1,2})[-\.\/_ ]+(20[0-2][0-9]))([^0-9].*|$) ]]; then
@@ -283,7 +285,7 @@ _parseDate_() {
             PARSE_DATE_MONTH=$((10#${BASH_REMATCH[3]}))
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_DAY=$((10#${BASH_REMATCH[4]}))
-            debug "regex match: ${tan}MM-DD-YYYY${purple}"
+            debug "regex match: MM-DD-YYYY"
         elif [[ $((10#${BASH_REMATCH[3]})) -gt 12 &&
             $((10#${BASH_REMATCH[3]})) -lt 32 &&
             $((10#${BASH_REMATCH[4]})) -lt 13 ]] \
@@ -293,7 +295,7 @@ _parseDate_() {
             PARSE_DATE_MONTH=$((10#${BASH_REMATCH[4]}))
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_DAY=$((10#${BASH_REMATCH[3]}))
-            debug "regex match: ${tan}DD-MM-YYYY${purple}"
+            debug "regex match: DD-MM-YYYY"
         elif [[ $((10#${BASH_REMATCH[3]})) -lt 32 &&
             $((10#${BASH_REMATCH[4]})) -lt 13 ]] \
             ; then
@@ -302,7 +304,7 @@ _parseDate_() {
             PARSE_DATE_MONTH=$((10#${BASH_REMATCH[3]}))
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_DAY=$((10#${BASH_REMATCH[4]}))
-            debug "regex match: ${tan}MM-DD-YYYY${purple}"
+            debug "regex match: MM-DD-YYYY"
         else
             shopt -u nocasematch
             return 1
@@ -319,7 +321,7 @@ _parseDate_() {
             PARSE_DATE_MONTH=$((10#${BASH_REMATCH[3]}))
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_DAY=$((10#${BASH_REMATCH[4]}))
-            debug "regex match: ${tan}MM-DD-YYYY${purple}"
+            debug "regex match: MM-DD-YYYY"
         elif [[ $((10#${BASH_REMATCH[3]})) -gt 12 &&
             $((10#${BASH_REMATCH[3]})) -lt 32 &&
             $((10#${BASH_REMATCH[4]})) -lt 13 ]] \
@@ -329,7 +331,7 @@ _parseDate_() {
             PARSE_DATE_MONTH=$((10#${BASH_REMATCH[4]}))
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_DAY=$((10#${BASH_REMATCH[3]}))
-            debug "regex match: ${tan}DD-MM-YYYY${purple}"
+            debug "regex match: DD-MM-YYYY"
         elif [[ $((10#${BASH_REMATCH[3]})) -lt 32 &&
             $((10#${BASH_REMATCH[4]})) -lt 13 ]] \
             ; then
@@ -338,7 +340,7 @@ _parseDate_() {
             PARSE_DATE_MONTH=$((10#${BASH_REMATCH[3]}))
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_DAY=$((10#${BASH_REMATCH[4]}))
-            debug "regex match: ${tan}MM-DD-YYYY${purple}"
+            debug "regex match: MM-DD-YYYY"
         else
             shopt -u nocasematch
             return 1
@@ -349,9 +351,9 @@ _parseDate_() {
         PARSE_DATE_FOUND="${BASH_REMATCH[1]}"
         PARSE_DATE_DAY="1"
         PARSE_DATE_MONTH="$(_monthToNumber_ "${BASH_REMATCH[2]}")"
-        PARSE_DATE_MONTH_NAME="$(_numberToMonth_ $PARSE_DATE_MONTH)"
+        PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
         PARSE_DATE_YEAR="$((10#${BASH_REMATCH[3]}))"
-        debug "regex match: ${tan}Month, YYYY${purple}"
+        debug "regex match: Month, YYYY"
 
     # YYYYMMDDHHMM
     elif [[ ${_stringToTest} =~ (.*[^0-9]|^)((20[0-2][0-9])([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2}))([^0-9].*|$) ]]; then
@@ -362,7 +364,7 @@ _parseDate_() {
         PARSE_DATE_YEAR="$((10#${BASH_REMATCH[3]}))"
         PARSE_DATE_HOUR="$((10#${BASH_REMATCH[6]}))"
         PARSE_DATE_MINUTE="$((10#${BASH_REMATCH[7]}))"
-        debug "regex match: ${tan}YYYYMMDDHHMM${purple}"
+        debug "regex match: YYYYMMDDHHMM"
 
     # YYYYMMDDHH            1      2        3         4         5         6
     elif [[ ${_stringToTest} =~ (.*[^0-9]|^)((20[0-2][0-9])([0-9]{2})([0-9]{2})([0-9]{2}))([^0-9].*|$) ]]; then
@@ -373,7 +375,7 @@ _parseDate_() {
         PARSE_DATE_YEAR="$((10#${BASH_REMATCH[3]}))"
         PARSE_DATE_HOUR="${BASH_REMATCH[6]}"
         PARSE_DATE_MINUTE="00"
-        debug "regex match: ${tan}YYYYMMDDHHMM${purple}"
+        debug "regex match: YYYYMMDDHHMM"
 
     # MMDDYYYY or YYYYMMDD or DDMMYYYY
     #                        1     2    3         4         5         6
@@ -389,7 +391,7 @@ _parseDate_() {
             PARSE_DATE_MONTH="$((10#${BASH_REMATCH[3]}))"
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_YEAR="${BASH_REMATCH[5]}${BASH_REMATCH[6]}"
-            debug "regex match: ${tan}MMDDYYYY${purple}"
+            debug "regex match: MMDDYYYY"
         # DDMMYYYY
         elif [[ $((10#${BASH_REMATCH[5]})) -eq 20 &&
             $((10#${BASH_REMATCH[3]})) -gt 12 &&
@@ -401,7 +403,7 @@ _parseDate_() {
             PARSE_DATE_MONTH="$((10#${BASH_REMATCH[4]}))"
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_YEAR="${BASH_REMATCH[5]}${BASH_REMATCH[6]}"
-            debug "regex match: ${tan}DDMMYYYY${purple}"
+            debug "regex match: DDMMYYYY"
         # YYYYMMDD
         elif [[ $((10#${BASH_REMATCH[3]})) -eq 20 &&
             $((10#${BASH_REMATCH[6]})) -gt 12 &&
@@ -413,7 +415,7 @@ _parseDate_() {
             PARSE_DATE_MONTH="$((10#${BASH_REMATCH[5]}))"
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_YEAR="${BASH_REMATCH[3]}${BASH_REMATCH[4]}"
-            debug "regex match: ${tan}YYYYMMDD${purple}"
+            debug "regex match: YYYYMMDD"
         # YYYYDDMM
         elif [[ $((10#${BASH_REMATCH[3]})) -eq 20 &&
             $((10#${BASH_REMATCH[5]})) -gt 12 &&
@@ -425,7 +427,7 @@ _parseDate_() {
             PARSE_DATE_MONTH="$((10#${BASH_REMATCH[6]}))"
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_YEAR="${BASH_REMATCH[3]}${BASH_REMATCH[4]}"
-            debug "regex match: ${tan}YYYYMMDD${purple}"
+            debug "regex match: YYYYMMDD"
         # Assume YYYMMDD
         elif [[ $((10#${BASH_REMATCH[3]})) -eq 20 &&
             $((10#${BASH_REMATCH[6]})) -lt 32 &&
@@ -436,7 +438,7 @@ _parseDate_() {
             PARSE_DATE_MONTH="$((10#${BASH_REMATCH[5]}))"
             PARSE_DATE_MONTH_NAME="$(_numberToMonth_ "${PARSE_DATE_MONTH}")"
             PARSE_DATE_YEAR="${BASH_REMATCH[3]}${BASH_REMATCH[4]}"
-            debug "regex match: ${tan}YYYYMMDD${purple}"
+            debug "regex match: YYYYMMDD"
         else
             shopt -u nocasematch
             return 1
@@ -485,13 +487,13 @@ _parseDate_() {
         return 1
     }
 
-    debug "${tan}\$PARSE_DATE_FOUND:     ${PARSE_DATE_FOUND}${purple}"
+    debug "\$PARSE_DATE_FOUND:     ${PARSE_DATE_FOUND}"
-    debug "${tan}\$PARSE_DATE_YEAR:      ${PARSE_DATE_YEAR}${purple}"
+    debug "\$PARSE_DATE_YEAR:      ${PARSE_DATE_YEAR}"
-    debug "${tan}\$PARSE_DATE_MONTH:     ${PARSE_DATE_MONTH}${purple}"
+    debug "\$PARSE_DATE_MONTH:     ${PARSE_DATE_MONTH}"
-    debug "${tan}\$PARSE_DATE_MONTH_NAME: ${PARSE_DATE_MONTH_NAME}${purple}"
+    debug "\$PARSE_DATE_MONTH_NAME: ${PARSE_DATE_MONTH_NAME}"
-    debug "${tan}\$PARSE_DATE_DAY:       ${PARSE_DATE_DAY}${purple}"
+    debug "\$PARSE_DATE_DAY:       ${PARSE_DATE_DAY}"
-    [[ -z ${PARSE_DATE_HOUR:-} ]] || debug "${tan}\$PARSE_DATE_HOUR:     ${PARSE_DATE_HOUR}${purple}"
+    [[ -z ${PARSE_DATE_HOUR:-} ]] || debug "\$PARSE_DATE_HOUR:     ${PARSE_DATE_HOUR}"
-    [[ -z ${PARSE_DATE_MINUTE:-} ]] || debug "${tan}\$PARSE_DATE_MINUTE:   ${PARSE_DATE_MINUTE}${purple}"
+    [[ -z ${PARSE_DATE_MINUTE:-} ]] || debug "\$PARSE_DATE_MINUTE:   ${PARSE_DATE_MINUTE}"
 
     shopt -u nocasematch
 
@@ -527,7 +529,8 @@ _readableUnixTimestamp_() {
     [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
     local _timestamp="${1}"
     local _format="${2:-"%F %T"}"
-    local _out="$(date -d "@${_timestamp}" +"${_format}")" || return 1
+    local _out
+    _out="$(date -d "@${_timestamp}" +"${_format}")" || return 1
     printf "%s\n" "${_out}"
 }
 
@@ -559,7 +562,7 @@ _toSeconds_() {
 
     if [[ $1 =~ [0-9]{1,2}(:|,|-|_|,| |[hHmMsS])[0-9]{1,2}(:|,|-|_|,| |[hHmMsS])[0-9]{1,2} ]]; then
         _saveIFS="${IFS}"
-        IFS=":,;-_, HhMmSs" read -r h m s <<<"$1"
+        IFS=":,;-_, HhMmSs" read -r _h _m _s <<<"$1"
         IFS="${_saveIFS}"
     else
         _h="$1"

utilities/debug.bash

@@ -31,7 +31,7 @@ _printAnsi_() {
 
     [[ $# == 0 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
-    #echo $(tr -dc '[:print:]'<<<$1)
+    #printf "%s\n" "$(tr -dc '[:print:]'<<<$1)"
     printf "%s\n" "${1//$'\e'/\\e}"
 
 }

utilities/files.bash

@@ -99,7 +99,7 @@ _createUniqueFilename_() {
     # USAGE:
     #         _createUniqueFilename_ "/some/dir/file.txt" --> /some/dir/file.txt.1
     #         _createUniqueFilename_ -i"/some/dir/file.txt" "-" --> /some/dir/file-1.txt
-    #         echo "line" > "$(_createUniqueFilename_ "/some/dir/file.txt")"
+    #         printf "%s" "line" > "$(_createUniqueFilename_ "/some/dir/file.txt")"
 
     [[ $# -lt 1 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
@@ -155,7 +155,7 @@ _createUniqueFilename_() {
     _fn="${_originalFile}"
     for ((i = 0; i < _levels; i++)); do
         _ext=${_fn##*.}
-        if [ $i == 0 ]; then
+        if [[ $i == 0 ]]; then
             _extension=${_ext}${_extension:-}
         else
             _extension=${_ext}.${_extension:-}
@@ -187,7 +187,7 @@ _createUniqueFilename_() {
         fi
     fi
 
-    echo "${_newFilename}"
+    printf "%s\n" "${_newFilename}"
     return 0
 }
 
@@ -391,7 +391,7 @@ _fileExtension_() {
     _fn="$_file"
     for ((i = 0; i < _levels; i++)); do
         _ext=${_fn##*.}
-        if [ $i == 0 ]; then
+        if [[ $i == 0 ]]; then
             _exts=${_ext}${_exts:-}
         else
             _exts=${_ext}.${_exts:-}
@@ -490,7 +490,7 @@ _listFiles_() {
     local _searchType="${1}"
     local _pattern="${2}"
     local _directory="${3:-.}"
-    local _fileMatch e
+    local _fileMatch
     declare -a _matchedFiles=()
 
     case "${_searchType}" in
@@ -661,7 +661,9 @@ _parseYAML_() {
 
     local _s='[[:space:]]*'
     local _w='[a-zA-Z0-9_]*'
-    local _fs="$(echo @ | tr @ '\034')"
+    local _fs
+    _fs="$(printf @ | tr @ '\034')"
+
     sed -ne "s|^\(${_s}\)\(${_w}\)${_s}:${_s}\"\(.*\)\"${_s}\$|\1${_fs}\2${_fs}\3|p" \
         -e "s|^\(${_s}\)\(${_w}\)${_s}[:-]${_s}\(.*\)${_s}\$|\1${_fs}\2${_fs}\3|p" "${_yamlFile}" \
         | awk -F"${_fs}" '{
@@ -693,12 +695,12 @@ _readFile_() {
 
     [ ! -f "$_fileToRead" ] \
         && {
-            echo "'$c' not found"
+            error "'${_fileToRead}' not found"
             return 1
         }
 
-    while read -r result; do
+    while read -r _result; do
-        printf "%s\n" "${result}"
+        printf "%s\n" "${_result}"
     done <"${_fileToRead}"
 }
 
@@ -716,7 +718,7 @@ _sourceFile_() {
     local _fileToSource="$1"
 
     [ ! -f "${_fileToSource}" ] && fatal "Attempted to source '${_fileToSource}'. Not found"
-
+    # shellcheck disable=SC1090
     if source "${_fileToSource}"; then
         return 0
     else

utilities/macOS.bash

@@ -31,7 +31,8 @@ _guiInput_() {
     #         https://github.com/herrbischoff/awesome-osx-command-line/blob/master/functions.md
     if _haveScriptableFinder_; then
         local _guiPrompt="${1:-Password:}"
-        local _guiInput=$(
+        local _guiInput
+        _guiInput=$(
             osascript &>/dev/null <<GUI_INPUT_MESSAGE
       tell application "System Events"
           activate
@@ -39,7 +40,7 @@ _guiInput_() {
       end tell
 GUI_INPUT_MESSAGE
         )
-        echo -n "${_guiInput}"
+        printf "%s\n" "${_guiInput}"
     else
         error "No GUI input without macOS"
         return 1

utilities/misc.bash

@@ -174,7 +174,7 @@ _execute_() {
     #         -v    Always print output from the execute function to STDOUT
     #         -n    Use NOTICE level alerting (default is INFO)
     #         -p    Pass a failed command with 'return 0'.  This effectively bypasses set -e.
-    #         -e    Bypass _alert_ functions and use 'echo RESULT'
+    #         -e    Bypass _alert_ functions and use 'printf RESULT'
     #         -s    Use '_alert_ success' for successful output. (default is 'info')
     #         -q    Do not print output (QUIET mode)
     # OUTS:
@@ -312,7 +312,7 @@ _findBaseDir_() {
         _source="$(readlink "${_source}")"
         [[ ${_source} != /* ]] && _source="${_dir}/${_source}" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
     done
-    printf "%s/n" "$(cd -P "$(dirname "${_source}")" && pwd)"
+    printf "%s\n" "$(cd -P "$(dirname "${_source}")" && pwd)"
 }
 
 _generateUUID_() {
@@ -370,8 +370,8 @@ _makeProgressBar_() {
     [[ $# == 0 ]] && return # Do nothing if no arguments are passed
     (${QUIET}) && return
     (${VERBOSE}) && return
-    [ ! -t 1 ] && return    # Do nothing if the output is not a terminal
+    [ ! -t 1 ] && return      # Do nothing if the output is not a terminal
-    [ ${1} == 1 ] && return # Do nothing with a single element
+    [[ ${1} == 1 ]] && return # Do nothing with a single element
 
     local n="${1}"
     local _width=30
@@ -390,7 +390,7 @@ _makeProgressBar_() {
     tput civis # Hide the cursor
     trap 'tput cnorm; exit 1' SIGINT
 
-    if [ ! "${progressBarProgress}" -eq $n ]; then
+    if [[ ! ${progressBarProgress} -eq $n ]]; then
         #echo "progressBarProgress: $progressBarProgress"
         # Compute the percentage.
         _percentage=$((progressBarProgress * 100 / $1))
@@ -455,7 +455,7 @@ _seekConfirmation_() {
     #         0 if answer is "yes"
     #         1 if answer is "no"
     # USAGE:
-    #         _seekConfirmation_ "Do something?" && echo "okay" || echo "not okay"
+    #         _seekConfirmation_ "Do something?" && printf "okay" || printf "not okay"
     #         OR
     #         if _seekConfirmation_ "Answer this question"; then
     #           something
@@ -467,7 +467,7 @@ _seekConfirmation_() {
     input "${1}"
     if "${FORCE}"; then
         debug "Forcing confirmation with '--force' flag set"
-        echo -e ""
+        printf "%s\n" " "
         return 0
     else
         while true; do

utilities/services.bash

@@ -37,8 +37,9 @@ _httpStatus_() {
     local _status
 
     #      __________ get the CODE which is numeric:
+    # shellcheck disable=SC1083
     _code=$(curl --write-out %{http_code} --silent --connect-timeout "${_timeout}" \
-        --no-keepalive ${_curlops} --output /dev/null ${_url})
+        --no-keepalive "${_curlops}" --output /dev/null "${_url}")
 
     #      __________ get the STATUS (from code) which is human interpretable:
     case $_code in
@@ -88,11 +89,11 @@ _httpStatus_() {
     esac
 
     case ${_flag} in
-        --status) echo "${_code} ${_status}" ;;
+        --status) printf "%s %s\n" "${_code}" "${_status}" ;;
-        -s) echo "${_code} ${_status}" ;;
+        -s) printf "%s %s\n" "${_code}" "${_status}" ;;
-        --code) echo "${_code}" ;;
+        --code) printf "%s\n" "${_code}" ;;
-        -c) echo "${_code}" ;;
+        -c) printf "%s\n" "${_code}" ;;
-        *) echo " _httpStatus_: bad flag" && _safeExit_ ;;
+        *) printf "%s\n" "_httpStatus_: bad flag" && _safeExit_ ;;
     esac
 
     IFS="${_saveIFS}"
@@ -117,6 +118,7 @@ _pushover_() {
     [[ $# -lt 4 ]] && fatal "Missing required argument to ${FUNCNAME[0]}"
 
     local _pushoverURL="https://api.pushover.net/1/messages.json"
+    local _messageTitle="${1}"
     local _message="${2}"
     local _apiKey="${3}"
     local _userKey="${4}"

utilities/strings.bash

@@ -65,36 +65,36 @@ _cleanString_() {
     IFS=',' read -r -a _arrayToClean <<<"${_userChars}"
 
     # trim trailing/leading white space and duplicate spaces/tabs
-    _string="$(echo "${_string}" | awk '{$1=$1};1')"
+    _string="$(printf "%s" "${_string}" | awk '{$1=$1};1')"
 
     local i
     for i in "${_arrayToClean[@]}"; do
         debug "cleaning: $i"
-        _string="$(echo "${_string}" | sed "s/$i//g")"
+        _string="$(printf "%s" "${_string}" | sed "s/$i//g")"
     done
 
     ("${_lc}") \
-        && _string="$(echo "${_string}" | tr '[:upper:]' '[:lower:]')"
+        && _string="$(printf "%s" "${_string}" | tr '[:upper:]' '[:lower:]')"
 
     ("${_uc}") \
-        && _string="$(echo "${_string}" | tr '[:lower:]' '[:upper:]')"
+        && _string="$(printf "%s" "${_string}" | tr '[:lower:]' '[:upper:]')"
 
     if "${_alphanumeric}" && "${_us}"; then
-        _string="$(echo "${_string}" | tr -c '[:alnum:]_ -' ' ')"
+        _string="$(printf "%s" "${_string}" | tr -c '[:alnum:]_ -' ' ')"
     elif "${_alphanumeric}"; then
-        _string="$(echo "${_string}" | sed "s/[^a-zA-Z0-9_ \-]//g")"
+        _string="$(printf "%s" "${_string}" | sed "s/[^a-zA-Z0-9_ \-]//g")"
     fi
 
     if "${_replace}"; then
-        _string="$(echo "${_string}" | sed -E "s/${_pairs[0]}/${_pairs[1]}/g")"
+        _string="$(printf "%s" "${_string}" | sed -E "s/${_pairs[0]}/${_pairs[1]}/g")"
     fi
 
     # trim trailing/leading white space and duplicate dashes & spaces
-    _string="$(echo "${_string}" | tr -s '-' | tr -s '_')"
+    _string="$(printf "%s" "${_string}" | tr -s '-' | tr -s '_')"
-    _string="$(echo "${_string}" | sed -E 's/([_\-]) /\1/g' | sed -E 's/ ([_\-])/\1/g')"
+    _string="$(printf "%s" "${_string}" | sed -E 's/([_\-]) /\1/g' | sed -E 's/ ([_\-])/\1/g')"
-    _string="$(echo "${_string}" | awk '{$1=$1};1')"
+    _string="$(printf "%s" "${_string}" | awk '{$1=$1};1')"
 
-    echo "${_string}"
+    printf "%s\n" "${_string}"
 
 }
 
@@ -158,7 +158,7 @@ _encodeHTML_() {
     _sedFile="${HOME}/.sed/htmlEncode.sed"
 
     [ -f "${_sedFile}" ] \
-        && { echo "${1}" | sed -f "${_sedFile}"; } \
+        && { printf "%s" "${1}" | sed -f "${_sedFile}"; } \
         || return 1
 }
 
@@ -181,7 +181,7 @@ _encodeURL_() {
 
     for ((i = 0; i < ${#1}; i++)); do
         if [[ ${1:i:1} =~ ^[a-zA-Z0-9\.\~_-]$ ]]; then
-            printf "${1:i:1}"
+            printf "%s" "${1:i:1}"
         else
             printf '%%%02X' "'${1:i:1}"
         fi
@@ -212,7 +212,7 @@ _lower_() {
     #         None
     # USAGE:
     #         text=$(_lower_ <<<"$1")
-    #         echo "STRING" | _lower_
+    #         printf "STRING" | _lower_
     tr '[:upper:]' '[:lower:]'
 }
 
@@ -225,7 +225,7 @@ _ltrim_() {
     #         None
     # USAGE:
     #         text=$(_ltrim_ <<<"$1")
-    #         echo "STRING" | _ltrim_
+    #         printf "STRING" | _ltrim_
     local _char=${1:-[:space:]}
     sed "s%^[${_char//%/\\%}]*%%"
 }
@@ -285,7 +285,7 @@ _rtrim_() {
     #         None
     # USAGE:
     #         text=$(_rtrim_ <<<"$1")
-    #         echo "STRING" | _rtrim_
+    #         printf "STRING" | _rtrim_
     local _char=${1:-[:space:]}
     sed "s%[${_char//%/\\%}]*$%%"
 }
@@ -414,7 +414,7 @@ _stripStopwords_() {
     local _w
 
     if [ -f "${_sedFile}" ]; then
-        _string="$(echo "${_string}" | sed -f "${_sedFile}")"
+        _string="$(printf "%s" "${_string}" | sed -f "${_sedFile}")"
     else
         fatal "_stripStopwords_: Missing sedfile expected at: ${_sedFile}"
     fi
@@ -424,12 +424,12 @@ _stripStopwords_() {
 
     if [[ ${#_localStopWords[@]} -gt 0 ]]; then
         for _w in "${_localStopWords[@]}"; do
-            _string="$(echo "${_string}" | sed -E "s/\b${_w}\b//gI")"
+            _string="$(printf "%s" "${_string}" | sed -E "s/\b${_w}\b//gI")"
         done
     fi
 
     # Remove double spaces and trim left/right
-    _string="$(echo "${_string}" | sed -E 's/[ ]{2,}/ /g' | _trim_)"
+    _string="$(printf "%s" "${_string}" | sed -E 's/[ ]{2,}/ /g' | _trim_)"
 
     printf "%s\n" "${_string}"
 
@@ -472,7 +472,7 @@ _trim_() {
     #         stdout: Prints string with leading/trailing whitespace removed
     # USAGE:
     #         text=$(_trim_ <<<"$1")
-    #         echo "STRING" | _trim_
+    #         printf "%s" "STRING" | _trim_
     # NOTE:
     #         Used through a pipe or here string.
 
@@ -488,6 +488,6 @@ _upper_() {
     #         None
     # USAGE:
     #         text=$(_upper_ <<<"$1")
-    #         echo "STRING" | _upper_
+    #         printf "%s" "STRING" | _upper_
     tr '[:lower:]' '[:upper:]'
 }

utilities/template_utils.bash

@@ -1,4 +1,5 @@
 # Functions required to allow the script template and alert functions to be used
+# shellcheck disable=SC2154
 
 _acquireScriptLock_() {
     # DESC:
@@ -69,7 +70,7 @@ _safeExit_() {
         if command rm -rf "${SCRIPT_LOCK}"; then
             debug "Removing script lock"
         else
-            warning "Script lock could not be removed. Try manually deleting ${yellow}'${LOCK_DIR}'"
+            warning "Script lock could not be removed. Try manually deleting ${tan}'${LOCK_DIR}'"
         fi
     fi
 
@@ -83,7 +84,7 @@ _safeExit_() {
     fi
 
     trap - INT TERM EXIT
-    exit ${1:-0}
+    exit "${1:-0}"
 }
 
 _setPATH_() {
@@ -101,7 +102,7 @@ _setPATH_() {
 
     for _newPath in "$@"; do
         if [ -d "${_newPath}" ]; then
-            if ! echo "${PATH}" | grep -Eq "(^|:)${_newPath}($|:)"; then
+            if ! printf "%s" "${PATH}" | grep -Eq "(^|:)${_newPath}($|:)"; then
                 if PATH="${_newPath}:${PATH}"; then
                     debug "Added '${_newPath}' to PATH"
                 else