From: Cedric Blancher <cedric.blancher@gmail.com>
To: cygwin@cygwin.com
Subject: Re: /usr/bin/sg in Cygwin?
Date: Mon, 22 Apr 2024 07:55:00 +0200 [thread overview]
Message-ID: <CALXu0Uen=vmJ5a8bv7ikOfHf_me0+uPkfcUHSPvugBMj_Vg_SA@mail.gmail.com> (raw)
In-Reply-To: <CAAvCNcB_vuStJjnd+GohVM-y=AHZBUP=Gi5A+AAgnddP3wDdQQ@mail.gmail.com>
On Mon, 22 Apr 2024 at 01:20, Dan Shelton via Cygwin <cygwin@cygwin.com> wrote:
>
> On Sat, 20 Apr 2024 at 07:39, Brian Inglis via Cygwin <cygwin@cygwin.com> wrote:
> >
> > On 2024-04-19 17:47, Dan Shelton via Cygwin wrote:
> > > On Fri, 23 Feb 2024 at 22:25, Dan Shelton wrote:
> > >> Is there a package which provides /usr/bin/sg (execute shell commands
> > >> in a different group)?
> >
> > The POSIX standard command is newgrp - install cygwin-doc to see Cygwin (and
> > newlib libc) man pages (and info, html, PDF docs), man-pages-posix to see POSIX
> > man pages, and man-pages-linux if you want to see recent Linux release man pages.
> >
> > To see possibly relevant commands, run:
> >
> > $ apropos -s 1,1p group
> > chgrp (1) - change group ownership
> > chgrp (1p) - change the file group ownership
> > chown (1) - change file owner and group
> > g3topbm (1) - convert a Group 3 fax file into a PBM image
> > groups (1) - print the groups a user is in
> > id (1) - print real and effective user and group IDs
> > make (1) - GNU Make utility to maintain groups of programs
> > make (1p) - maintain, update, and regenerate groups of programs
> > mkgroup (1) - Write /etc/group-like output to stdout
> > newgrp (1) - change primary group for a command
> > newgrp (1p) - change to a new group
> > pbmtog3 (1) - convert a PBM image into a Group 3 MH fax file
>
> newgrp(1) is USELESS. It only opens an interactive shell, but does not
> allow the user to execute a non-interactive script with the requested
> group like bash -c does.
Linux /usr/bin/sg source is in
https://github.com/shadow-maint/shadow/blob/master/src/newgrp.c
So this is just a packaging issue that whoever does the Cygwin newgrp
package has to package /usr/bin/sg too
Ced
--
Cedric Blancher <cedric.blancher@gmail.com>
[https://plus.google.com/u/0/+CedricBlancher/]
Institute Pasteur
next prev parent reply other threads:[~2024-04-22 5:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-23 21:25 Dan Shelton
2024-04-19 23:47 ` Dan Shelton
2024-04-20 5:38 ` Brian Inglis
2024-04-21 23:20 ` Dan Shelton
2024-04-22 1:35 ` Eliot Moss
2024-04-22 8:46 ` Corinna Vinschen
2024-04-22 5:55 ` Cedric Blancher [this message]
2024-04-22 8:54 ` Corinna Vinschen
2024-04-22 5:35 ` Cedric Blancher
2024-04-22 17:40 ` Brian Inglis
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