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sg − execute command as different group ID |
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sg [−] [group [−c ] command] |
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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. |
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The following configuration variables in /etc/login.defs change the behavior of this tool: SYSLOG_SG_ENAB (boolean) |
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Enable "syslog" logging of sg activity. |
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/etc/passwd |
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User account information. |
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/etc/shadow |
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Secure user account information. |
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/etc/group |
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Group account information. |
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/etc/gshadow |
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Secure group account information. |
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id(1), login(1), newgrp(1), su(1), gpasswd(1), group(5), gshadow(5). |