Update flattool

Updated version number.
Fixed various typos.
Surrounded variables in { } when next to text to avoid potential problems.
Removed any use of local.
Clarified bash in the shebang instead of sh.

flattool

@@ -1,8 +1,8 @@
-#!/usr/bin/env sh
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-3.0-only
 
 # Global variables
-versionNumber="0.1.1"
+versionNumber="0.1.2"
 appID=''
 
 # Functions to save time programming this
@@ -17,13 +17,13 @@ printerr() {
     printf "\033[1;31merror:\033[0m $1\n\n"
 
     if [ $# -eq 2 ]; then
-        printf "$2\n"
+        printf "${2}\n"
     fi
 }
 
 # Get explicit concent function
 userConcent() {
-    local prompt=$1
+    prompt=$1
     printf -- "$prompt [y|N]: "
     read -r answer
     case "$answer" in
@@ -40,14 +40,14 @@ userConcent() {
 
 # Information printing function
 printinfo() {
-    printf -- "  Version\t$versionNumber\n"
-    printf -- "  Location\t$0\n\n"
+    printf -- "  Version\t${versionNumber}\n"
+    printf -- "  Location\t${0}\n\n"
 }
 
 # Function to easily check that the command called has the right amount of arguments
 checkArgLength() {
-    local minLnegth=$1
-    local maxLength=$2
+    minLnegth=$1
+    maxLength=$2
     if [ $minLnegth -lt 0 ] || ( [ $minLnegth -gt $maxLength ] && [ $maxLength -ge 0 ] ); then
         printerr "Internal program error: checkArgLength called with improper min or max values\n$0"
         exit 1
@@ -66,6 +66,7 @@ checkArgLength() {
     fi
 }
 # ====================================================================================
+
 printMasterHelp() {
     println "Usage: flattool <command>"
     printinfo
@@ -87,22 +88,22 @@ print_subcommand_help() {
         install)
             println "  install - usage: flattool install <app-query> <app-query> <app-query> ..."
             println "    can also be ran with '-i'"
-            println "    about: Installs one or more flatpak apps with seperate processes to avoid cancelling the queue if a name cannot be matched\n"
+            println "    about: Installs one or more flatpak apps with separate processes to avoid cancelling the queue if a name cannot be matched\n"
             ;;
         uninstall)
             println "  uninstall - usage: flattool uninstall <app-query> <app-query> <app-query> ..."
             println "    can also be ran with '-u', 'remove', 'rm'"
-            println "    about: Uninstalls one or more flatpak apps with seperate processes to avoid cancelling the queue if a name cannot be matched\n"
+            println "    about: Uninstalls one or more flatpak apps with separate processes to avoid cancelling the queue if a name cannot be matched\n"
             ;;
         purge)
-            println "  purge - usage: flattool puge <app-query>"
+            println "  purge - usage: flattool purge <app-query>"
             println "    can also be ran with '-p'"
             println "    about: Uninstalls a flatpak app and trashes its user data folder\n"
             ;;
         search)
             println "  search - usage: flattool search <app-query>"
             println "    can also be ran with '-s'"
-            println "    about:Searches installed flatpaks and returns lines from 'flatpak list' that match the query\n"
+            println "    about: Searches installed flatpaks and returns lines from 'flatpak list' that match the query\n"
             ;;
         id)
             println "  id - usage: flattool id <app-query>"
@@ -171,17 +172,17 @@ esac
 # Main functions for the app
 # ====================================================================================
 identifyByQuery() {
-    local app=$(flatpak list | awk -v app="${1,,}" -F '\t' 'tolower($0) ~ app { print $2 }' | head -n 1)
+    app=$(flatpak list | awk -v app="${1,,}" -F '\t' 'tolower($0) ~ app { print $2 }' | head -n 1)
     if [ -z $app ]; then
-        printerr "No Application ID found from query: '\033[1m$1\033[0m'"
+        printerr "No Application ID found from query: '\033[1m${1}\033[0m'"
 
         exit 1
     fi
     appID=$app
 }
 
 searchApp() {
-    local output=$(flatpak list | grep -i "$1")
+    output=$(flatpak list | grep -i "$1")
     if [ -z "$output" ]; then
         println "No installed application found from query: '\033[1m$1\033[0m'"
         exit 1
@@ -209,7 +210,7 @@ removeApp() {
 
 purgeApp() {
     identifyByQuery $1
-    userConcent "Are you sure you want to uninstall \033[1m$appID\033[0m and move its user data to the trash?"
+    userConcent "Are you sure you want to uninstall \033[1m${appID}\033[0m and move its user data to the trash?"
     flatpak uninstall $appID
     gio trash $HOME/.var/app/$appID
 }
@@ -355,6 +356,6 @@ case "$subcommand" in
         printinfo
         ;;
     *)
-        printerr "'$subcommand' is not a flattool command" "See 'flattool --help'"
+        printerr "'${subcommand}' is not a flattool command" "See 'flattool --help'"
         ;;
 esac