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Date: Fri, 2 Feb 2001 21:28:54 -0800
From: "Crist J. Clark" <cjclark@reflexnet.net>
To: Arcady Genkin <a.genkin@utoronto.ca>
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: Change group ID in a shell script
Message-ID: <20010202212854.B91447@rfx-216-196-73-168.users.reflex>
Reply-To: cjclark@alum.mit.edu
References: <87vgqteb00.fsf@tea.thpoon.com> <20010202004144.A30084@dell.dannyland.org> <87r91hea7x.fsf@tea.thpoon.com> <20010202005517.B307@dell.dannyland.org> <87lmrpe7kv.fsf@tea.thpoon.com> <20010202160421.W91447@rfx-216-196-73-168.users.reflex> <877l38efzn.fsf@tea.thpoon.com>
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In-Reply-To: <877l38efzn.fsf@tea.thpoon.com>; from a.genkin@utoronto.ca on Fri, Feb 02, 2001 at 08:02:04PM -0500
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On Fri, Feb 02, 2001 at 08:02:04PM -0500, Arcady Genkin wrote:
> "Crist J. Clark" <cjclark@reflexnet.net> writes:
> 
> > > I solved the problem by writing a Perl script instead of a shell
> > > script (using Perl's `setpgrp').  I would still like to know how I
> > > could do that in a shell script, though.
> > 
> > It does not seem like it would matter for your purposes. The group ID
> > of a newly created file has nothing to do with the group of the user
> > creating it (aside from possibly giving permissions to write the
> > file) on a BSD system.
> 
> Ooops, you are right.  Then I haven't solved the problem (I only
> tested the script on the Solaris side until I read your message).  In
> this case, let me rephrase the question into two:
> 
> 1.  How do I change process's user group in a shell script?

I do not think a mortal user can. And I am not sure why one would want
to.

> 2.  How do I make sure files are created with a certain group
> ownership in a shell script?

I am not aware of a way in BSD to have a file created with a specific
group ownership using regular commands. All I can suggest is to
chgrp(1) files once created.
-- 
Crist J. Clark                           cjclark@alum.mit.edu


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