shadow/man/gpasswd.1

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.TH "GPASSWD" "1" "08/03/2005" "User Commands" "User Commands"
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.SH "NAME"
gpasswd \- administer the /etc/group file
.SH "SYNOPSIS"
.HP 8
\fBgpasswd\fR \fIgroup\fR
.HP 8
\fBgpasswd\fR \-a\ \fIuser\fR \fIgroup\fR
.HP 8
\fBgpasswd\fR \-d\ \fIuser\fR \fIgroup\fR
.HP 8
\fBgpasswd\fR \-R\ \fIgroup\fR
.HP 8
\fBgpasswd\fR \-r\ \fIgroup\fR
.HP 8
\fBgpasswd\fR [\-A\ \fIuser,\fR...] [\-M\ \fIuser,\fR...] \fIgroup\fR
.SH "DESCRIPTION"
.PP
\fBgpasswd\fR
is used to administer the
\fI/etc/group\fR
file (and
\fI/etc/gshadow\fR
file if compiled with SHADOWGRP defined). Every group can have administrators, members and a password. System administrator can use
\fB\-A\fR
option to define group administrator(s) and
\fB\-M\fR
option to define members and has all rights of group administrators and members.
.SH "OPTIONS"
.PP
Group administrator can add and delete users using
\fB\-a\fR
and
\fB\-d\fR
options respectively. Administrators can use
\fB\-r\fR
option to remove group password. When no password is set only group members can use
\fBnewgrp\fR
to join the group. Option
\fB\-R\fR
disables access via a password to the group through
\fBnewgrp\fR
command (however members will still be able to switch to this group).
.PP
\fBgpasswd\fR
called by a group administrator with group name only prompts for the group password. If password is set the members can still
\fBnewgrp\fR(1)
without a password, non\-members must supply the password.
.SH "FILES"
.TP
\fI/etc/group\fR
group account information
.TP
\fI/etc/gshadow\fR
secure group account information
.SH "SEE ALSO"
.PP
\fBnewgrp\fR(1),
\fBgroupadd\fR(8),
\fBgroupdel\fR(8),
\fBgroupmod\fR(8),
\fBgrpck\fR(8),
\fBgroup\fR(5),
\fBgshadow\fR(5)
.SH "AUTHOR"
.PP
Rafal Maszkowski <rzm@pdi.net>