How to use batch file to give a folder permission to the Everyone group

Question

Im trying to add the group Everyone and give it modify permissions on a folder. Im using a batch file to try this. so for I have icacls \"C:\

Answer 1

No need to put :r after /grant. Check the examples by typing icacls /?

Do like this:

icacls "C:\Program Files (x86)\Program File" /grant Everyone:M