'\" t
.\"     Title: groupmems
.\"    Author: George Kraft, IV
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 27-07-2018
.\"    Manual: Systemhanteringskommandon
.\"    Source: shadow-utils 4.5
.\"  Language: Swedish
.\"
.TH "GROUPMEMS" "8" "27-07-2018" "shadow\-utils 4\&.5" "Systemhanteringskommandon"
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.SH "NAMN"
groupmems \- administrera medlemmar av en anv\(:andares prim\(:ara grupp
.SH "SYNOPSIS"
.HP \w'\fBgroupmems\fR\ 'u
\fBgroupmems\fR \-a\ \fIanv\(:andarnamn\fR | \-d\ \fIanv\(:andarnamn\fR | [\-g\ \fIgruppnamn\fR] | \-l | \-p 
.SH "BESKRIVNING"
.PP
The
\fBgroupmems\fR
command allows a user to administer his/her own group membership list without the requirement of superuser privileges\&. The
\fBgroupmems\fR
utility is for systems that configure its users to be in their own name sake primary group (i\&.e\&., guest / guest)\&.
.PP
Only the superuser, as administrator, can use
\fBgroupmems\fR
to alter the memberships of other groups\&.
.SH "FLAGGOR"
.PP
Flaggorna som g\(:aller f\(:or kommandot
\fBgroupmems\fR
\(:ar:
.PP
\fB\-a\fR, \fB\-\-add\fR\ \&\fIuser_name\fR
.RS 4
Add a user to the group membership list\&.
.sp
If the
/etc/gshadow
file exist, and the group has no entry in the
/etc/gshadow
file, a new entry will be created\&.
.RE
.PP
\fB\-d\fR, \fB\-\-delete\fR\ \&\fIuser_name\fR
.RS 4
Ta bort en anv\(:andare fr\(oan gruppen medlemslista\&.
.sp
If the
/etc/gshadow
file exist, the user will be removed from the list of members and administrators of the group\&.
.sp
If the
/etc/gshadow
file exist, and the group has no entry in the
/etc/gshadow
file, a new entry will be created\&.
.RE
.PP
\fB\-g\fR, \fB\-\-group\fR\ \&\fIgroup_name\fR
.RS 4
The superuser can specify which group membership list to modify\&.
.RE
.PP
\fB\-h\fR, \fB\-\-help\fR
.RS 4
Visa hj\(:alpmeddelande och avsluta\&.
.RE
.PP
\fB\-l\fR, \fB\-\-list\fR
.RS 4
Lista gruppens medlemslista\&.
.RE
.PP
\fB\-p\fR, \fB\-\-purge\fR
.RS 4
Rensa alla anv\(:andare fr\(oan gruppens medlemslista\&.
.sp
If the
/etc/gshadow
file exist, and the group has no entry in the
/etc/gshadow
file, a new entry will be created\&.
.RE
.PP
\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
.RS 4
Apply changes in the
\fICHROOT_DIR\fR
directory and use the configuration files from the
\fICHROOT_DIR\fR
directory\&.
.RE
.SH "SETUP"
.PP
The
\fBgroupmems\fR
executable should be in mode
2770
as user
\fIroot\fR
and in group
\fIgroups\fR\&. The system administrator can add users to group
\fIgroups\fR
to allow or disallow them using the
\fBgroupmems\fR
utility to manage their own group membership list\&.
.sp
.if n \{\
.RS 4
.\}
.nf
	$ groupadd \-r groups
	$ chmod 2770 groupmems
	$ chown root\&.groups groupmems
	$ groupmems \-g groups \-a gk4
    
.fi
.if n \{\
.RE
.\}
.SH "CONFIGURATION"
.PP
The following configuration variables in
/etc/login\&.defs
change the behavior of this tool:
.PP
\fBMAX_MEMBERS_PER_GROUP\fR (number)
.RS 4
Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
/etc/group
(with the same name, same password, and same GID)\&.
.sp
The default value is 0, meaning that there are no limits in the number of members in a group\&.
.sp
This feature (split group) permits to limit the length of lines in the group file\&. This is useful to make sure that lines for NIS groups are not larger than 1024 characters\&.
.sp
If you need to enforce such limit, you can use 25\&.
.sp
Note: split groups may not be supported by all tools (even in the Shadow toolsuite)\&. You should not use this variable unless you really need it\&.
.RE
.SH "FILER"
.PP
/etc/group
.RS 4
Gruppkontoinformation\&.
.RE
.PP
/etc/gshadow
.RS 4
s\(:aker gruppkontoinformation
.RE
.SH "SE OCKS\(oA"
.PP
\fBchfn\fR(1),
\fBchsh\fR(1),
\fBpasswd\fR(1),
\fBgroupadd\fR(8),
\fBgroupdel\fR(8),
\fBuseradd\fR(8),
\fBuserdel\fR(8),
\fBusermod\fR(8)\&.
