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SG(1)                            User Commands                           SG(1)

       sg - execute command as different group ID

       sg [-] [group [-c ] command]

       The sg command works similar to newgrp but accepts a command. The command will be executed with the /bin/sh
       shell. With most shells you may run sg from, you need to enclose multi-word commands in quotes. Another
       difference between newgrp and sg is that some shells treat newgrp specially, replacing themselves with a new
       instance of a shell that newgrp creates. This doesn?t happen with sg, so upon exit from a sg command you are
       returned to your previous group ID.

       The following configuration variables in /etc/login.defs change the behavior of this tool:

       SYSLOG_SG_ENAB (boolean)
           Enable "syslog" logging of sg activity.

           User account information.

           Secure user account information.

           Group account information.

           Secure group account information.

       id(1), login(1), newgrp(1), su(1), gpasswd(1), group(5), gshadow(5).

shadow-utils              05/10/2016                             SG(1)