amx_set-resolution

# ====================================================
# AMX_Manager Copyright(C) 2018 Furkan Türkal
# This program comes with ABSOLUTELY NO WARRANTY; This is free software,
# and you are welcome to redistribute it under certain conditions; See
# file LICENSE, which is part of this source code package, for details.
# ====================================================

#!/bin/bash

# Check for required applications
command -v notify-send  >/dev/null 2>&1 || { echo >&2 "AMX_Wallpaper: I require 'notify-send' but it's not installed! Aborting.";   exit 1; }
command -v xrandr  		>/dev/null 2>&1 || { echo >&2 "AMX_Wallpaper: I require 'xrandr' but it's not installed! Aborting.";   		exit 1; }

if [[ -z "$@" ]];
then
	echo "An argument is needed to run this script";
	exit
else
	arg="$@"

	if [[ $(($(echo $arg | grep -o "\s" | wc --chars) / 2 )) -ne 2 ]];
	then
	echo "Invalid Parameters. You need to specify parameters in the format "width height refreshRate""
	echo "For example setResolution "2560 1440 60""
	exit
	fi

	modename=$(echo $arg | sed 's/\s/_/g')
	display=$(xrandr | grep -Po '.+(?=\sconnected)')
	
	if [[ "$(xrandr|grep $modename)" = "" ]];
	then
		xrandr --newmode $modename $(gtf $(echo $arg) | grep -oP '(?<="\s\s).+') &&
		xrandr --addmode $display $modename
	fi
	
	xrandr --output $display --mode $modename

	if [[ $? -eq 0 ]];
	then
		notify-send -a 'AMX_Resolution' -u low 'Display resolution changed'
		echo "Display changed successfully to $arg"
	fi
fi