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From: charlie@mica.stat.washington.edu (Charlie Geyer)
Newsgroups: comp.unix.wizards
Subject: Re: Access permission (was: New (GNU) kernels--what I think)
Message-ID: <1508@uw-entropy.ms.washington.edu>
Date: 10 Jun 89 23:14:45 GMT
References: <2501@gandalf.UUCP> <13488@swan.ulowell.edu> <32063@bu-cs.BU.EDU> <2510@gandalf.UUCP> <TALE.89Jun9202950@imagine.pawl.rpi.edu>
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In article <TALE.89Jun9202950@imagine.pawl.rpi.edu> tale@pawl.rpi.edu writes:

> With MTS I can always permit my files exactly the way I want to and
> limit or give as much permission to the file as is my wont.  If I just
> want a particular account to have read access to a file, I can do it
> and not have to permit the entire project (group) access.  If I want a
> certain programme to be able to access the file, I can permit it so.
> If I want a whole project to have access, no problem.  And I don't
> have to go around making new groups for people to be in and setting
> GID or UID permissions; allowing the programme access rather than the
> project or person is much more secure this way.

So to change the subject from GNU OS, how DOES one do this in UNIX?

If I am writing a paper and I want to allow my coauthor, but not the rest
of the world, to edit the file, is there any way to do this without setting
up a new group?