Date: Fri, 31 May 1996 12:11:27 +0100 From: "Gary Palmer" <gpalmer@FreeBSD.ORG> To: Kevin Lyda <kevin@NDA.COM> Cc: freebsd-hackers@freefall.freebsd.org Subject: Re: newgrp(1) Message-ID: <8754.833541087@palmer.demon.co.uk> In-Reply-To: Your message of "Fri, 31 May 1996 06:31:03 EDT." <199605311031.GAA05588@nda.nda.com>
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Kevin Lyda wrote in message ID
<199605311031.GAA05588@nda.nda.com>:
> i'm not sure what this proves. anyway, a newgrp command might be useful
> in terms of file creation. if you had a group of users that all shared
> membership in group foo, a single newgrp at the start of the day
> would help avoid access denied issues.
Umm. Not really. You just do the work in a directory which is group
writable and owned byt he group, and the group (assuming your umask
is set right) will be able to work away to their hearts content.
E.g.:
gary@palmer:~> ls -algod .
drwxrwxr-x 22 gary gary - 1536 May 31 01:58 .
gary@palmer:~> touch test
gary@palmer:~> ls -algo test
-rw-rw-r-- 1 gary gary - 0 May 31 12:02 test
gary@palmer:~> cd /home/group
gary@palmer:/home/group> ls -algod .
drwxrwxr-x 2 root staff - 512 May 31 12:02 .
gary@palmer:/home/group> touch work.c
gary@palmer:/home/group> ls -algo work.c
-rw-rw-r-- 1 gary staff - 0 May 31 12:03 work.c
^^^^^
So if other ``staff'' wanted to edit the file, they could. And they
would pick up the same group ownership from the directory that I
did...
It makes it a lot simpler than the Sys V model as you don't have to
remember to newgrp before switching to another project, you just `cd'
into the new work area and go.
Because of the different inheritance semantics between *BSD and SYS V,
I think a newgrp command would be basically useless without breaking a
lot of existing installations by changing the inheritance
system. Since we are NOT trying to be SYS V, we are trying to be a
stable system which doesn't go switching things around without good
reason, I don't think a move to SYS V semantics is likely...
Gary
--
Gary Palmer FreeBSD Core Team Member
FreeBSD: Turning PC's into workstations. See http://www.FreeBSD.ORG/ for info
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