On Tue, Apr 20, 2004 at 06:22:53PM +0800, Ow Mun Heng wrote: > Hi Guys, > > Simple question. > > in the /etc/group file, have something like this > > Group1:userA,userB,userC > Group2:userD > > If Some Group2 is a subset of Group1, can I put this in > > Group2:userD,Group1 No, that won't work. Group1 in your second example would be assumed to be a user name (which it might well be). Nalin