This is a simple script. make sure before running this script you have RSAT
tool installed and ActiVe Directory Module is loaded.
You can change the OU with yours.
The idea behind this script is simple , if we need to create a multiple group
and add similar users to all Group then manually creating the Groups doesnt make
any sense. Then you achive that purpose i worte this script.
More info from this link: http://newdelhipowershellusergroup.blogspot.in/2012/06/powershell-and-active-directory.html