diff --git a/bin/scripts/Hack/postprocess.sh b/bin/scripts/Hack/postprocess.sh
index 16bff989a..f26d94dc3 100755
--- a/bin/scripts/Hack/postprocess.sh
+++ b/bin/scripts/Hack/postprocess.sh
@@ -9,6 +9,6 @@ echo "dir $dir"
 "${dir}/autohint.sh" "$fontfile"
 "${dir}/../fpfix.py" "$fontfile"
 
-printf "\n"
-printf "[Nerd Fonts] Post Processed Hack '%s'\n" "$fontfile"
+printf "\\n"
+printf "[Nerd Fonts] Post Processed Hack '%s'\\n" "$fontfile"
 
diff --git a/bin/scripts/generate-css.sh b/bin/scripts/generate-css.sh
index 9ca76131a..4e4791bfd 100755
--- a/bin/scripts/generate-css.sh
+++ b/bin/scripts/generate-css.sh
@@ -2,6 +2,7 @@
 # version: 1.2.0
 # Generates CSS file for the font
 
+# shellcheck disable=SC1091
 source ./lib/i_all.sh
 
 output_css_file="../../css/nerd-fonts-generated.css"
@@ -11,17 +12,17 @@ LINE_PREFIX="# [Nerd Fonts] "
 version="1.2.0"
 
 # clear files
-> "$output_css_file" 2> /dev/null
-> "$output_cheat_sheet_file" 2> /dev/null
+true > "$output_css_file" 2> /dev/null
+true > "$output_cheat_sheet_file" 2> /dev/null
 
 # describe how the classes were established
 {
-  printf "/*\n"
-  printf " *%s Website: https://www.nerdfonts.com\n" "$LINE_PREFIX"
-  printf " *%s Development Website: https://github.com/ryanoasis/nerd-fonts\n" "$LINE_PREFIX"
-  printf " *%s Version: %s\n" "$LINE_PREFIX" "$version"
-  printf " *%s The following is generated from the build script\n" "$LINE_PREFIX"
-  printf " */\n\n"
+  printf "/*\\n"
+  printf " *%s Website: https://www.nerdfonts.com\\n" "$LINE_PREFIX"
+  printf " *%s Development Website: https://github.com/ryanoasis/nerd-fonts\\n" "$LINE_PREFIX"
+  printf " *%s Version: %s\\n" "$LINE_PREFIX" "$version"
+  printf " *%s The following is generated from the build script\\n" "$LINE_PREFIX"
+  printf " */\\n\\n"
   # add top section of CSS
   cat $header_css_file
 } >> "$output_css_file"
@@ -49,25 +50,25 @@ for var in "${!i@}"; do
   # generate css rules
   {
     printf ".nf-%s:before, .nerd-font-%s:before, .nerd-fonts-%s:before {" "$glyph_name" "$glyph_name" "$glyph_name"
-    printf "\n"
-    printf "  content: \"\%s\";" "$glyph_code"
-    printf "\n"
+    printf "\\n"
+    printf "  content: \"\\%s\";" "$glyph_code"
+    printf "\\n"
     printf "}"
-    printf "\n"
+    printf "\\n"
   } >> "$output_css_file"
 
   # generate HTML cheat sheet
   {
     printf "<div class=\"column\">"
-    printf "\n"
+    printf "\\n"
     printf "  <div class=\"nerd-font nerd-font-%s center\"></div>" "$glyph_name"
-    printf "\n"
+    printf "\\n"
     printf "  <span>nf-%s <br/>(%s)</span>" "$glyph_name" "$glyph_code"
-    printf "\n"
+    printf "\\n"
     printf "</div>"
-    printf "\n"
+    printf "\\n"
   } >> "$output_cheat_sheet_file"
 
 done
 
-printf "Generated CSS and Cheat Sheet HTML\n"
+printf "Generated CSS and Cheat Sheet HTML\\n"
diff --git a/bin/scripts/generate-fontconfig.sh b/bin/scripts/generate-fontconfig.sh
index 207dec815..1527d4bd5 100755
--- a/bin/scripts/generate-fontconfig.sh
+++ b/bin/scripts/generate-fontconfig.sh
@@ -18,7 +18,7 @@ cd $unpatched_parent_dir || {
 }
 
 # clear output file (needed for multiple runs or updates):
-> "$to" 2> /dev/null
+true > "$to" 2> /dev/null
 
 # add to the file
 {
@@ -60,6 +60,6 @@ done
 
 # add to the file
 {
-  printf "\n</fontconfig>\n"
+  printf "\\n</fontconfig>\\n"
 } >> "$to"
 
diff --git a/bin/scripts/gotta-patch-em-all-font-patcher!.sh b/bin/scripts/gotta-patch-em-all-font-patcher!.sh
index 57a8f1af6..e44f2539f 100755
--- a/bin/scripts/gotta-patch-em-all-font-patcher!.sh
+++ b/bin/scripts/gotta-patch-em-all-font-patcher!.sh
@@ -1,8 +1,8 @@
 #!/bin/bash
 # version: 1.2.0
 
-# used for debugging
-#set -x
+  # used for debugging
+  #set -x
 
 # for executing script to rebuild JUST the readmes:
 # ./gotta-patch-em-all-font-patcher\!.sh "" info
@@ -75,9 +75,11 @@ function patch_font {
   # source the font config file if exists:
   if [ -f "$config_dir/config.cfg" ]
   then
+    # shellcheck source=/dev/null
     source "$config_dir/config.cfg"
   elif [ -f "$config_parent_dir/config.cfg" ]
   then
+    # shellcheck source=/dev/null
     source "$config_parent_dir/config.cfg"
   fi
 
@@ -88,13 +90,15 @@ function patch_font {
     post_process=""
   fi
 
+  # shellcheck disable=SC2154
+  # we know the '$config_has_powerline' is from the sourced file
   if [ "$config_has_powerline" ]
   then
     powerline=""
-    combinations=$(printf "./font-patcher ${f##*/} %s\n" {' --use-single-width-glyphs',}{' --windows',}{' --fontawesome',}{' --octicons',}{' --fontlinux',}{' --pomicons',}{' --powerlineextra',}{' --fontawesomeextension',}{' --powersymbols',})
+    combinations=$(printf "./font-patcher ${f##*/} %s\\n" {' --use-single-width-glyphs',}{' --windows',}{' --fontawesome',}{' --octicons',}{' --fontlinux',}{' --pomicons',}{' --powerlineextra',}{' --fontawesomeextension',}{' --powersymbols',})
   else
     powerline="--powerline"
-    combinations=$(printf "./font-patcher ${f##*/} %s\n" {' --powerline',}{' --use-single-width-glyphs',}{' --windows',}{' --fontawesome',}{' --octicons',}{' --fontlinux',}{' --pomicons',}{' --powerlineextra',}{' --fontawesomeextension',}{' --powersymbols',})
+    combinations=$(printf "./font-patcher ${f##*/} %s\\n" {' --powerline',}{' --use-single-width-glyphs',}{' --windows',}{' --fontawesome',}{' --octicons',}{' --fontlinux',}{' --pomicons',}{' --powerlineextra',}{' --fontawesomeextension',}{' --powersymbols',})
   fi
 
   cd "$parent_dir" || {
@@ -138,19 +142,21 @@ function generate_info {
   # source the font config file if exists:
   if [ -f "$config_dir/config.cfg" ]
   then
+    # shellcheck source=/dev/null
     source "$config_dir/config.cfg"
   elif [ -f "$config_parent_dir/config.cfg" ]
   then
+    # shellcheck source=/dev/null
     source "$config_parent_dir/config.cfg"
   fi
 
   if [ "$config_has_powerline" ]
   then
     powerline=""
-    combinations=$(printf "./font-patcher ${f##*/} %s\n" {' --use-single-width-glyphs',}{' --windows',}{' --fontawesome',}{' --octicons',}{' --fontlinux',}{' --pomicons',}{' --powerlineextra',}{' --fontawesomeextension',}{' --powersymbols',})
+    combinations=$(printf "./font-patcher ${f##*/} %s\\n" {' --use-single-width-glyphs',}{' --windows',}{' --fontawesome',}{' --octicons',}{' --fontlinux',}{' --pomicons',}{' --powerlineextra',}{' --fontawesomeextension',}{' --powersymbols',})
   else
     powerline="--powerline"
-    combinations=$(printf "./font-patcher ${f##*/} %s\n" {' --powerline',}{' --use-single-width-glyphs',}{' --windows',}{' --fontawesome',}{' --octicons',}{' --fontlinux',}{' --pomicons',}{' --powerlineextra',}{' --fontawesomeextension',}{' --powersymbols',})
+    combinations=$(printf "./font-patcher ${f##*/} %s\\n" {' --powerline',}{' --use-single-width-glyphs',}{' --windows',}{' --fontawesome',}{' --octicons',}{' --fontlinux',}{' --pomicons',}{' --powerlineextra',}{' --fontawesomeextension',}{' --powersymbols',})
   fi
 
   font_families_count=$((font_families_count+1))
@@ -184,7 +190,7 @@ function generate_readme {
   local font_info="$patched_font_dir/font-info.md"
 
   # clear output file (needed for multiple runs or updates):
-  > "$combinations_filename"
+  true > "$combinations_filename"
 
   if [ -f "$font_info" ];
   then
@@ -202,16 +208,16 @@ function generate_readme {
     # add to the file
     {
       printf "\`\`\`sh"
-      printf "\n# %s Possible Combinations:\n" "$combination_count"
-      printf "\n"
+      printf "\\n# %s Possible Combinations:\\n" "$combination_count"
+      printf "\\n"
       printf "%s" "$combinations"
-      printf "\n"
+      printf "\\n"
       printf "\`\`\`"
     } >> "$combinations_filename"
   fi
 }
 
-if [ ! $info_only ]
+if [ ! "$info_only" ]
 then
   # Iterate through source fonts
   for i in "${!source_fonts[@]}"
@@ -227,7 +233,7 @@ then
     # however we want to run a certain number in parallel to decrease
     # the amount of time patching all the fonts will take
     # for now set a 'wait' for each X set of processes:
-    if [[ $(($i % $max_parallel_process)) == 0 ]];
+    if [[ $((i % max_parallel_process)) == 0 ]];
     then
       echo "$LINE_PREFIX Complete Variation Count after max parallel process is  $complete_variation_count"
       wait
@@ -259,11 +265,11 @@ dt3=$(echo "$dt2-3600*$dh" | bc)
 dm=$(echo "$dt3/60" | bc)
 ds=$(echo "$dt3-60*$dm" | bc)
 
-printf "$LINE_PREFIX Total runtime: %d:%02d:%02d:%02d\n" "$dd" "$dh" "$dm" "$ds"
+printf "$LINE_PREFIX Total runtime: %d:%02d:%02d:%02d\\n" "$dd" "$dh" "$dm" "$ds"
 
-printf "# All fonts patched to sub-directories in \t\t\t'%s'\n" "$patched_parent_dir"
-printf "# The total number of font typefaces patched was \t\t'%s'\n" "$font_typefaces_count"
-printf "# The total number of font families patched was \t\t'%s'\n" "$font_families_count"
-printf "# The total number of 'complete' patched fonts created was \t'%s'\n" "$complete_variation_count"
-printf "# The total number of 'variation' patched fonts created was \t'%s'\n" "$total_variation_count"
-printf "# The total number of patched fonts created was \t\t'%s'\n" "$total_count"
+printf "# All fonts patched to sub-directories in \\t\\t\\t'%s'\\n" "$patched_parent_dir"
+printf "# The total number of font typefaces patched was \\t\\t'%s'\\n" "$font_typefaces_count"
+printf "# The total number of font families patched was \\t\\t'%s'\\n" "$font_families_count"
+printf "# The total number of 'complete' patched fonts created was \\t'%s'\\n" "$complete_variation_count"
+printf "# The total number of 'variation' patched fonts created was \\t'%s'\\n" "$total_variation_count"
+printf "# The total number of patched fonts created was \\t\\t'%s'\\n" "$total_count"
diff --git a/bin/scripts/lib/i_all.sh b/bin/scripts/lib/i_all.sh
index 74d072b5d..f70d8785c 100644
--- a/bin/scripts/lib/i_all.sh
+++ b/bin/scripts/lib/i_all.sh
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 for i in $(dirname "${BASH_SOURCE[0]:-$0}")/i_{dev,fae,fa,iec,linux,oct,ple,pom,seti}.sh; do
+	# shellcheck source=/dev/null
 	test -f "$i" -a -r "$i" && source "$i"
 done
 unset i
diff --git a/bin/scripts/standardize-and-complete-readmes.sh b/bin/scripts/standardize-and-complete-readmes.sh
index 2653fe815..11093e7ad 100755
--- a/bin/scripts/standardize-and-complete-readmes.sh
+++ b/bin/scripts/standardize-and-complete-readmes.sh
@@ -24,7 +24,7 @@ function appendRfnInfo {
   then
     # add to the file
     {
-      printf "\n## Why \`%s\` and not \`%s\`?\n" "$config_rfn_substitue" "$config_rfn"
+      printf "\\n## Why \`%s\` and not \`%s\`?\\n" "$config_rfn_substitue" "$config_rfn"
       cat "$working_dir/../../src/readme-rfn-addendum.md"
     } >> "$to"
   fi
@@ -35,7 +35,7 @@ function clearDestination {
   local to=$1; shift
   [[ -d "$to_dir" ]] || mkdir -p "$to_dir"
   # clear output file (needed for multiple runs or updates):
-  > "$to" 2> /dev/null
+  true > "$to" 2> /dev/null
 }
 
 #find ./ProFont -type d | # uncomment to test 1 font (with txt)
@@ -67,6 +67,7 @@ do
     # source the font config file if exists:
     if [ -f "$searchdir/config.cfg" ]
     then
+      # shellcheck source=/dev/null
       source "$searchdir/config.cfg"
     else
       # reset the variables
@@ -145,7 +146,7 @@ do
     clearDestination "$to_dir" "$to"
 
     {
-      printf "# %s\n\n" "$base_directory"
+      printf "# %s\\n\\n" "$base_directory"
     } >> "$to"
 
     appendRfnInfo "$config_rfn" "$config_rfn_substitue" "$PWD" "$to"
diff --git a/bin/scripts/test-fonts.sh b/bin/scripts/test-fonts.sh
index a7dcee588..832752e07 100755
--- a/bin/scripts/test-fonts.sh
+++ b/bin/scripts/test-fonts.sh
@@ -27,6 +27,8 @@ function print-decimal-unicode-range() {
 
   # add fillers to array to maintain table:
   if [[ "$leftoverSpaces" < "$wrapAt" ]]; then
+    # shellcheck disable=SC2034
+    # needs rework without 'i' var?
     for i in $(seq 1 $leftoverSpaces); do
       originalSequence+=(0)
     done
@@ -34,15 +36,16 @@ function print-decimal-unicode-range() {
 
   local sequenceLength=${#originalSequence[@]}
 
-  printf "%b\n" "$topLine"
+  printf "%b\\n" "$topLine"
 
   for decimalCode in "${originalSequence[@]}"; do
-    local hexCode=$(printf '%x' "${decimalCode}")
+    local hexCode
+    hexCode=$(printf '%x' "${decimalCode}")
     local code="${hexCode}"
-    local char="\u${hexCode}"
+    local char="\\u${hexCode}"
 
     # fill in placeholder cells properly formatted:
-    if [ "${char}" = "\u0" ]; then
+    if [ "${char}" = "\\u0" ]; then
       char=" "
       code="    "
     fi
@@ -63,12 +66,12 @@ function print-decimal-unicode-range() {
       fi
 
       printf "%b%b%b" "$bar" "$allCodes" "$reset_color"
-      printf "\n"
+      printf "\\n"
       printf "%b%b%b" "$bar" "$allChars" "$reset_color"
-      printf "\n"
+      printf "\\n"
 
       if [ "$counter" != "$sequenceLength" ]; then
-        printf "%b\n" "$line"
+        printf "%b\\n" "$line"
       fi
 
       allCodes=""
@@ -77,7 +80,7 @@ function print-decimal-unicode-range() {
 
   done
 
-  printf "%b\n" "$bottomLine"
+  printf "%b\\n" "$bottomLine"
 
 }
 
diff --git a/bin/scripts/test-powerlines.sh b/bin/scripts/test-powerlines.sh
index d84dd5014..4ec903348 100755
--- a/bin/scripts/test-powerlines.sh
+++ b/bin/scripts/test-powerlines.sh
@@ -6,14 +6,22 @@ text2='Nerd Fonts'
 leftSymbolsCodes=('E0B0' 'E0B4' 'E0B8' 'E0BC' 'E0C0' 'E0C4' 'E0C6' 'E0C8' 'E0CC' 'E0CE' 'E0CF' 'E0CF' 'E0D1' 'E0D2')
 rightSymbolsCodes=('E0B2' 'E0B6' 'E0BA' 'E0BE' 'E0C2' 'E0C5' 'E0C7' 'E0C8' 'E0CC' 'E0CE' 'E0CF' 'E0CF' 'E0D1' 'E0D4')
 
+# shellcheck disable=SC2034
+# don't check unused vars we might want to use them later on
 colorReset='\033[0m'
 colorBgWhite='\033[107m'
+# shellcheck disable=SC2034
+# don't check unused vars we might want to use them later on
 colorBgLightBlue='\033[104m' # light blue, bright green is 102
 colorBgBlack='\033[40m'
 colorBg1='\033[100m'
 colorBg2=$colorBgBlack
+# shellcheck disable=SC2034
+# don't check unused vars we might want to use them later on
 colorFgLightBlue='\033[94m'
 colorFgLightGray='\033[90m'
+# shellcheck disable=SC2034
+# don't check unused vars we might want to use them later on
 colorFgLightYellow='\033[93m'
 colorFgBlack='\033[30m'
 colorFg1=$colorFgBlack
@@ -23,18 +31,18 @@ colorBgDefault='\033[49m'
 echo -e "$colorReset Nerd Fonts :: Testing Powerline Symbol size and alignment"
 
 for i in "${!leftSymbolsCodes[@]}"; do
-	symbol="\u${leftSymbolsCodes[$i]}"
-	symbol2="\u${rightSymbolsCodes[$i]}"
+	symbol="\\u${leftSymbolsCodes[$i]}"
+	symbol2="\\u${rightSymbolsCodes[$i]}"
 	code="${leftSymbolsCodes[$i]}"
 	code2="${rightSymbolsCodes[$i]}"
 
 	if [ "$code" = "$code2" ]; then
-		symbol2="\u${rightSymbolsCodes[0]}"
+		symbol2="\\u${rightSymbolsCodes[0]}"
 		code2='None'
 	fi
 
-	echo -e "$colorBg1$colorFg1$text1 $code $colorFg2$colorBg2$symbol $text2 $colorFg1$colorBgDefault$symbol -- $colorFg1$colorBgDefault$symbol2$colorFg2$colorBg2 $text2 $symbol2$colorBg1$colorFg1 $code2 $colorReset$colorBgWhite\n$colorReset"
+	echo -e "$colorBg1$colorFg1$text1 $code $colorFg2$colorBg2$symbol $text2 $colorFg1$colorBgDefault$symbol -- $colorFg1$colorBgDefault$symbol2$colorFg2$colorBg2 $text2 $symbol2$colorBg1$colorFg1 $code2 $colorReset$colorBgWhite\\n$colorReset"
 
 done
 
-printf "\n"
+printf "\\n"
diff --git a/bin/scripts/tests.sh b/bin/scripts/tests.sh
index 1dd6f46a8..0eded9937 100755
--- a/bin/scripts/tests.sh
+++ b/bin/scripts/tests.sh
@@ -6,13 +6,13 @@ echo "Click to start"
 # Window geometry
 # source: https://www.maketecheasier.com/record-screen-as-animated-gif-ubuntu/
 XWININFO=$(xwininfo)
-read X < <(awk -F: '/Absolute upper-left X/{print $2}' <<< "$XWININFO")
-read Y < <(awk -F: '/Absolute upper-left Y/{print $2}' <<< "$XWININFO")
-read W < <(awk -F: '/Width/{print $2}' <<< "$XWININFO")
-read H < <(awk -F: '/Height/{print $2}' <<< "$XWININFO")
+read -r X < <(awk -F: '/Absolute upper-left X/{print $2}' <<< "$XWININFO")
+read -r Y < <(awk -F: '/Absolute upper-left Y/{print $2}' <<< "$XWININFO")
+read -r W < <(awk -F: '/Width/{print $2}' <<< "$XWININFO")
+read -r H < <(awk -F: '/Height/{print $2}' <<< "$XWININFO")
 
-byzanz-record -c --exec=./test-fonts.sh --x=$X --y=$Y --width=$W --height=$H "rec3.gif"
+byzanz-record -c --exec=./test-fonts.sh --x="$X" --y="$Y" --width="$W" --height="$H" "rec3.gif"
 
 convert -coalesce "rec3.gif" "results/nerd-fonts.png"
-convert -append $(ls -v results/*.png) ./test-combined.png
+convert -append $"(ls -v results/*.png)" ./test-combined.png
 
diff --git a/bin/scripts/upload-archives.sh b/bin/scripts/upload-archives.sh
index 1beac53e0..b182af3c5 100755
--- a/bin/scripts/upload-archives.sh
+++ b/bin/scripts/upload-archives.sh
@@ -16,12 +16,15 @@ private_config="../private.cfg"
 # source the private confit file if exists:
 if [ -f "$private_config" ]
 then
+  # shellcheck source=/dev/null
   source "$private_config"
 else
   echo >&2 "$LINE_PREFIX Could not source private config"
   exit 1
 fi
 
+# shellcheck disable=SC2154
+# # we know the '$github_access_token' is from the sourced file
 TOKEN=$github_access_token
 OWNER="ryanoasis"
 REPO="nerd-fonts"
@@ -63,7 +66,7 @@ do
 
 	printf "$LINE_PREFIX Uploading %s" "$basename"
 
-	curl -# -XPOST -H "Authorization:token $TOKEN" -H "Content-Type:application/octet-stream" --data-binary @"$basename" https://uploads.github.com/repos/$OWNER/$REPO/releases/$RELEASE/assets?name="$basename"
+	curl -# -XPOST -H "Authorization:token $TOKEN" -H "Content-Type:application/octet-stream" --data-binary @"$basename" https://uploads.github.com/repos/"$OWNER"/"$REPO"/releases/"$RELEASE"/assets?name="$basename"
 
 	#exit # uncomment to test only 1 zip
 
diff --git a/bin/scripts/version-bump.sh b/bin/scripts/version-bump.sh
index 5293261b8..7c046a8ab 100755
--- a/bin/scripts/version-bump.sh
+++ b/bin/scripts/version-bump.sh
@@ -15,9 +15,9 @@ fi
 
 release=$1
 
-sed -i "s|[0-9]\.[0-9]\.[0-9]|$release|g" ../../font-patcher
-sed -i "s|\# version: [0-9]\.[0-9]\.[0-9]|\# version: $release|g" ../../bin/scripts/*.sh
-sed -i "s|version=\"[0-9]\.[0-9]\.[0-9]\"|version=\"$release\"|g" ../../bin/scripts/*.sh
+sed -i "s|[0-9]\\.[0-9]\\.[0-9]|$release|g" ../../font-patcher
+sed -i "s|\\# version: [0-9]\\.[0-9]\\.[0-9]|\\# version: $release|g" ../../bin/scripts/*.sh
+sed -i "s|version=\"[0-9]\\.[0-9]\\.[0-9]\"|version=\"$release\"|g" ../../bin/scripts/*.sh
 
 exit
 
diff --git a/install.sh b/install.sh
index b31426749..a061263f5 100755
--- a/install.sh
+++ b/install.sh
@@ -1,13 +1,11 @@
 #!/bin/bash
 # Install Nerd Fonts
-__ScriptVersion="0.2"
+__ScriptVersion="0.3"
 
 # Default values for option variables:
 quiet=false
 mode="copy"
 clean=false
-mono=false
-windows=false
 extension="otf"
 patches=("Complete")
 compat=()
@@ -110,7 +108,7 @@ while getopts "$optspec" optchar; do
               # If the user has picked one of these options,
               # we need to unset `Complete`
               delete=("Complete")
-              patches=( "${patches[@]/$delete}" )
+              patches=( "${patches[@]/${delete[0]}}" )
               case "${OPTARG}" in
                 fontawesome) patches=( "${patches[@]}" "Font Awesome" );;
                 fontlinux) patches=( "${patches[@]}" "Font Linux" );;
@@ -133,7 +131,7 @@ while getopts "$optspec" optchar; do
 
   esac
 done
-shift $(($OPTIND-1))
+shift $((OPTIND-1))
 
 # Set source and target directories, default: all fonts
 nerdfonts_root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/patched-fonts"
@@ -146,7 +144,7 @@ if [ ! -z "$*" ]; then
     if [ ! -z "$font" ]; then
       # Ensure that directory exists, and offer suggestions if not
       if [[ ! -d "$nerdfonts_root_dir/$font" ]]; then
-        echo -e "Font $font doesn't exist. Options are: \n"
+        echo -e "Font $font doesn't exist. Options are: \\n"
         find "$nerdfonts_root_dir" -maxdepth 1 -type d \( \! -name "$(basename "$nerdfonts_root_dir")" \) -exec basename {} \;
         exit -1
       fi
@@ -164,7 +162,7 @@ implode() {
     # $3... are the elements to join
     local retname=$1 sep=$2 ret=$3
     shift 3 || shift $(($#))
-    printf -v "$retname" "%s" "$ret${@/#/$sep}"
+    printf -v "$retname" "%s" "$ret${*/#/$sep}"
 }
 find_include=
 find_exclude=
@@ -179,7 +177,7 @@ if [ ! -z "${compat[*]}" ]; then
 fi
 # Delete empty elements
 for i in "${!include[@]}"; do
-  [ "${include[$i]}" = '' ] && unset include[$i]
+  [ "${include[$i]}" = '' ] && unset include["$i"]
 done
 if [ ! -z "${include[*]}" ]; then
   implode find_include "*' -and -name '*" "${include[@]}"
@@ -193,11 +191,11 @@ for delete in "${include[@]}"; do
 done
 # Delete empty elements
 for i in "${!exclude[@]}"; do
-  [ "${exclude[$i]}" = '' ] && unset exclude[$i]
+  [ "${exclude[$i]}" = '' ] && unset exclude["$i"]
 done
 if [ ! -z "${exclude[*]}" ]; then
-  implode find_exclude "*' -and \! -name '*" "${exclude[@]}"
-  find_exclude="-and \! -name '*${find_exclude}*'"
+  implode find_exclude "*' -and \\! -name '*" "${exclude[@]}"
+  find_exclude="-and \\! -name '*${find_exclude}*'"
 fi
 
 # Construct directories to be searched
@@ -205,7 +203,7 @@ implode find_dirs "\" \"" "${nerdfonts_dirs[@]}"
 find_dirs="\"$find_dirs\""
 
 # Put it all together into the find command we want
-find_command="find $find_dirs \( \( -name '*.[o,t]tf' -or -name '*.pcf.gz' \) $find_include $find_exclude \) -type f -print0"
+find_command="find $find_dirs \\( \\( -name '*.[o,t]tf' -or -name '*.pcf.gz' \\) $find_include $find_exclude \\) -type f -print0"
 
 # Find all the font files and store in array
 files=()
@@ -226,12 +224,12 @@ done
 # Remove duplicates
 for i in "${!files_dedup[@]}"; do
   for j in "${!files_dedup[@]}"; do
-    [ $i = $j ] && continue
+    [ "$i" = "$j" ] && continue
     if [ "${files_dedup[$i]}" = "${files_dedup[$j]}" ]; then
       ext="${files[$i]##*.}"
       # Only remove if the extension is the one we don’t want
       if [ "$ext" != "$extension" ]; then
-        unset files[$i]
+        unset files["$i"]
       fi
     fi
   done