dotfiles/bin/brightness

#!/bin/bash
disps=$(xrandr -q | grep " connected")

if [ "$1"	= '-h' ];
then
	echo $0 '[-h] [displaycode,[ brightness]]'
	exit
fi

if [ ! -z $2 ];
then
	disp=$1
	bright=$2
elif [ $(echo $disps | wc | awk '{print $1}') = 1 ];
then
	disp=$(echo $disps | awk '{print $1}')
else
	echo "Available displays:"
	echo $disps
	echo "What display to use?"
	read disp
fi

if [ -z $bright ];
then
	if [ ! -z $1 ];
	then
		bright=$1
	else
		echo "Brightness[0-1]:"
		read bright
	fi
fi

xrandr --output $disp --brightness $bright