Name
sg - execute command as different group IDSynopsis
sg [-] [group\ [-c\ ]\ command]
Description
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\*(Aqt happen with sg, so upon exit from a sg command you are returned to your previous group ID.
Configuration
The following configuration variables in /etc/login.defs change the behavior of this tool:
SYSLOG_SG_ENAB (boolean) Enable "syslog" logging of sg activity.
Files
/etc/passwd User account information.
/etc/shadow Secure user account information.
/etc/group Group account information.
/etc/gshadow Secure group account information.
See Also
id(1), login(1), newgrp(1), su(1), gpasswd(1), group(5), gshadow(5).