rest-for-eye.sh

#This script is to alert me for every 20 minutes to move away from my system 
#and to give rest to my eyes
#just to follow 20-20-20 rule


  while true
do

  notify-send -t 500000 -u critical "Protocol" "eyes are in danger-just get away"

   sleep 1200; #20 minutes since sleep takes parameter in seconds

done