#!/bin/bash

brightness="/sys/class/backlight/intel_backlight/brightness"
presbright=`cat /sys/class/backlight/intel_backlight/brightness`
perc=`expr $presbright "*" 100 "/" 24`

case "$1" in
	up)
      xbacklight -time 100 -inc 15
      lvl=`xbacklight`
      pkill xfce4-notifyd; notify-send -c test -i ~/brightness-up-64x64.png -h int:value:$lvl test
	;;
	down)
      xbacklight -time 100 -dec 15
      lvl=`xbacklight`
      pkill xfce4-notifyd; notify-send -c test -i ~/brightness-up-64x64.png -h int:value:$lvl test
	;;
	status)
	  echo $presbright
	;;
	*)
	  echo "Accepted arguments are: up, down, status."
	;;
esac

exit 0