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1. NAME▲
sg - execute command as different group ID
2. SYNOPSIS ▲
sg [-] [group [-c ] command]
3. 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.
4. 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.
5. FILES ▲
/etc/passwd
User account information.
/etc/shadow
Secure user account information.
/etc/group
Group account information.
/etc/gshadow
Secure group account information.
