From: utzoo!decvax!harpo!npoiv!alice!sjb Newsgroups: net.unix-wizards Title: Re: chown of files Article-I.D.: alice.818 Posted: Fri Jul 30 08:10:50 1982 Received: Sat Jul 31 02:43:57 1982 References: utcsstat.277 Chown should remove the setuid (and setgid) bits of a file's mode when it is called. Same with chgrp. However, one can say something like this: chown some_powerful_group file chmod 2700 file and then own a file that is setgid to the powerful group (say bin or sys)