Mahmood N <[log in to unmask]> writes: > [root@N100 mahmood]# groups mahmood > mahmood : devs mahmood > [root@N100 mahmood]# groups devs > plotfi : devs > > [mahmood@N100 ~]$ ls /home/devs/tools > ls: cannot access /home/devs/tools: Permission denied Besides Jon's response, keep in mind that recent changes to the /etc/group file does not affect any currently running shells. Typing simply "groups" in your "mahmood@N100" shell would confirm if that instance picked up the change or not. If the change wasn't picked up, log out that account and log back in. -Brett.