execute command as different group ID


' sg 'u 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 (Aqt 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 .


/etc/passwd User account information .

/etc/shadow Secure user account information .

/etc/group Group account information .

/etc/gshadow Secure group account information .


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

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