shadow/man/newgrp.1

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.\"$Id: newgrp.1,v 1.10 2001/12/22 05:40:01 kloczek Exp $
.\" Copyright 1991, Julianne Frances Haugh
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.TH NEWGRP 1
.SH NAME
newgrp \- Change group ID
.br
sg \- Execute command as different group ID
.SH SYNOPSIS
\fBnewgrp\fR [\fB-\fR] [\fIgroup\fR]
.br
\fBnewgrp\fR [\fB-\fR] [\fIgroup\fR [[\fB-c\fR] \fIcommand\fR]]
.SH DESCRIPTION
\fBnewgrp\fR is used to change the current group ID during a login session.
If the optional \fB\-\fR flag is given, the user's environment
will be reinitialized as though the user had logged in, otherwise
the current environment, including current working directory,
remains unchanged.
.PP
\fBnewgrp\fR changes the current real group ID to the named group, or to the
default group listed in \fI/etc/passwd\fR if no group name is given. The
user will be prompted for a password if they do not have a password and the
group does, or if the user is not listed as a member and the group has a
password. The user will be denied access if the group password is empty and
the user is not listed as a member.
.PP
The \fBsg\fR command works similiar to \fBnewgrp\fR but does not replace the
user's shell, so upon exit from a \fBsg\fR command, you are returned to your
previous group ID. \fBsg\fR also accepts a command. The command will be
executed with the Bourne shell and must be enclosed in quotes.
.SH CAVEATS
This version of \fBnewgrp\fR has many compilation options,
only some of which may be in use at any particular site.
.SH FILES
/etc/passwd \- user account information
.br
/etc/group \- group information
.SH SEE ALSO
.BR login (1),
.BR id (1),
.BR su (1)
.SH AUTHOR
Julianne Frances Haugh (jockgrrl@ix.netcom.com)