#!/bin/bash
screenOffLockFile=/tmp/screen-off-lock
 
if [ -f $screenOffLockFile ];
then
        rm $screenOffLockFile
	notify-send "Screen on." -i /usr/share/icons/gnome/48x48/devices/display.png
else
        touch $screenOffLockFile
        sleep .5
        while [ -f  $screenOffLockFile ]
        do
                xset dpms force off
                sleep 2
        done
        xset dpms force on
fi