Add security groups to t he folder acl

Hi,

I have the list of fodlers and the security permision which needs to be added. But i am not sure how to use this csv file to add the sec groups to the acl of the listed folders. am new to powershell and any help on this would be appreciated.

Example:

example\folder1 : e_f1

example\folder1\folder2 :e_f1_f2

example\folder3 : E_f3

example\folder3\folder4 : e_f3_f4