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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:
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 22.214.171.124 05/25/2012 SG(1)
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