#!/bin/bash brightness=$((`xbacklight|cut -f1 -d"."` + 1 )) echo $brightness if [ $brightness -lt 10 ] then status="notification-display-brightness-off" elif [ $brightness -lt "30" ] then status="notification-display-brightness-low" elif [ $brightness -lt "60" ] then status="notification-display-brightness-medium" elif [ $brightness -lt "95" ] then status="notification-display-brightness-high" else status="notification-display-brightness-full" fi notify-send " " -i $status -h int:value:$brightness -h string:x-canonical-private-synchronous:brightness