fix: lint custom executables against shellcheck

dot_local/bin/executable_fix_xcursor

@@ -1,6 +1,4 @@
-#! /bin/bash
-#
-# /usr/bin/setcursor
+#! /usr/bin/env bash
 
 # config files
 gtk2=$HOME/.gtkrc-2.0
@@ -11,39 +9,39 @@ gtk3=$HOME/.config/gtk-3.0/settings.ini
 default=share/icons/default/index.theme
 glob_default=/usr/$default
 user_default=$HOME/.local/$default
-[[ -e $glob_default ]] && [[ ! -e $user_default ]] && install -D $glob_default $user_default 
+[[ -e $glob_default ]] && [[ ! -e $user_default ]] && install -D $glob_default "$user_default"
 
 # cursor-theme entries
-cursor_gtk2=$(grep "cursor-theme-name" $gtk2 | cut -d'"' -f2)
-cursor_gtk3=$(grep "cursor-theme-name" $gtk3 | cut -d'=' -f2)
-cursor_xr=$(grep "Xcursor.theme" $xr | cut -d' ' -f2)
+cursor_gtk2=$(grep "cursor-theme-name" "$gtk2" | cut -d'"' -f2)
+cursor_gtk3=$(grep "cursor-theme-name" "$gtk3" | cut -d'=' -f2)
+cursor_xr=$(grep "Xcursor.theme" "$xr" | cut -d' ' -f2)
 
 cursor=$1
 
 # find config last modified
-if [ -z $1 ]; then
+if [ -z "$1" ]; then
 	cursor=$cursor_gtk2; newest=$gtk2
-	[[ $xr -nt $gtk2 ]] && [[ ! -z $cursor_xr ]] && cursor=$cursor_xr && newest=$xr
-	[[ $gtk3 -nt $newest ]] && [[ ! -z $cursor_gtk3 ]] && cursor=$cursor_gtk3
+	[[ $xr -nt $gtk2 ]] && [[ -n $cursor_xr ]] && cursor=$cursor_xr && newest=$xr
+	[[ $gtk3 -nt $newest ]] && [[ -n $cursor_gtk3 ]] && cursor=$cursor_gtk3
 fi
 
 # Strip any quotes from cursor string
-cursor=$(echo $cursor | sed -e 's/"//g')
+cursor=${cursor/\"/}
 
 # set theme in all config files
 echo "setting cursortheme \"$cursor\""
 [[ "$cursor" != "$cursor_xr" ]] && \
-	sed -i "s/Xcursor.theme:.*/Xcursor.theme: $cursor/g" $xr &>/dev/null && \
-	xrdb -merge -I$HOME ~/.Xresources
+	sed -i "s/Xcursor.theme:.*/Xcursor.theme: $cursor/g" "$xr" &>/dev/null && \
+	xrdb -merge -I"$HOME" ~/.Xresources
 [[ "$cursor" != "$cursor_gtk2" ]] && \
-	sed -i "s/cursor-theme-name=\".*\"/cursor-theme-name=\"$cursor\"/" $gtk2
+	sed -i "s/cursor-theme-name=\".*\"/cursor-theme-name=\"$cursor\"/" "$gtk2"
 [[ "$cursor" != "$cursor_gtk3" ]] && \
-	sed -i "s/cursor-theme-name=.*/cursor-theme-name=$cursor/" $gtk3 &>/dev/null
-[[ -e $user_default ]] && sed -i "s/Inherits=.*/Inherits=$cursor/" $user_default &>/dev/null
+	sed -i "s/cursor-theme-name=.*/cursor-theme-name=$cursor/" "$gtk3" &>/dev/null
+[[ -e $user_default ]] && sed -i "s/Inherits=.*/Inherits=$cursor/" "$user_default" &>/dev/null
 
 # and in the realms of the GNOMEs
-[[ -f /usr/bin/gconftool-2 ]] && gconftool-2 --type string -s /desktop/gnome/peripherals/mouse/cursor $cursor
-[[ -f /usr/bin/gsettings ]] && gsettings set org.gnome.desktop.interface cursor-theme $cursor
+[[ -f /usr/bin/gconftool-2 ]] && gconftool-2 --type string -s /desktop/gnome/peripherals/mouse/cursor "$cursor"
+[[ -f /usr/bin/gsettings ]] && gsettings set org.gnome.desktop.interface cursor-theme "$cursor"
 
 exit
 

dot_local/bin/executable_mailcount

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 UNREAD_ONLY=true
 MAIL_DIR=~/.local/share/mail
@@ -6,7 +6,7 @@ MAIL_DIR=~/.local/share/mail
 mailcount=0
 
 if [[ -d ${MAIL_DIR} ]]; then
-  for dir in ${MAIL_DIR}/*/; do
+  for dir in "${MAIL_DIR}"/*/; do
     # get file count for the unread mailbox, add to count
     mailcount=$(( $( ls ${dir}INBOX/new | wc -l ) + $mailcount ))
 
@@ -19,4 +19,3 @@ if [[ -d ${MAIL_DIR} ]]; then
 fi
 
 echo ${mailcount}
-

dot_local/bin/executable_mullvad-status

@@ -1,14 +1,14 @@
 #!/usr/bin/env bash
 
-while read LINE; do
+while read -r LINE; do
   if echo "$LINE" | grep -q 'Connected'; then
     # get the relay (3rd word) | drop the wireguard/openvpn suffix | make it uppercase
     # just replace this with whatever style you like
-    OUTPUT=$(echo $LINE | cut -d " " -f 3 | cut -d "-" -f 1 | tr '/a-z/' '/A-Z/')
+    OUTPUT=$(echo "$LINE" | cut -d " " -f 3 | cut -d "-" -f 1 | tr '/a-z/' '/A-Z/')
     ICON=" "
   else
     ICON=" "
   fi
 
-  echo $ICON $OUTPUT
+  echo "$ICON" "$OUTPUT"
 done < <(mullvad status listen)