Re: program that runs a given command under a given gid

[Jann Horn]

On Sat, May 26, 2012 at 03:10:02PM +0200, Bruno Haible wrote:
> Hi,
> 
> Is there a program that runs a given command with the identity changed
> to a given group id? Like 'sudo' does for the uid, but for the gid instead.
> Does such a program exist?

From the sudo manpage:

       -g group    Normally, sudo sets the primary group to the one specified 
by the passwd database for the user the command is being run as (by default, 
root).  The -g
                   (group) option causes sudo to run the specified command with 
the primary group set to group.  To specify a gid instead of a group name, use 
#gid.  When
                   running commands as a gid, many shells require that the '#' 
be escaped with a backslash ('\').  If no -u option is specified, the command 
will be run as
                   the invoking user (not root).  In either case, the primary 
group will be set to group.

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