'\" t .\" Title: gpasswd .\" Author: rafal Maszkowski .\" Generator: DocBook XSL Stylesheets vsnapshot .\" Date: 04/02/2024 .\" Manual: Commandes utilisateur .\" Source: shadow-utils 4.13 .\" Language: French .\" .TH "GPASSWD" "1" "04/02/2024" "shadow\-utils 4\&.13" "Commandes utilisateur" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NOM" gpasswd \- administer /etc/group and /etc/gshadow .SH "SYNOPSIS" .HP \w'\fBgpasswd\fR\ 'u \fBgpasswd\fR [\fIoption\fR] \fIgroupe\fR .SH "DESCRIPTION" .PP The \fBgpasswd\fR command is used to administer /etc/group, and /etc/gshadow\&. Every group can have administrators, members and a password\&. .PP System administrators can use the \fB\-A\fR option to define group administrator(s) and the \fB\-M\fR option to define members\&. They have all rights of group administrators and members\&. .PP \fBgpasswd\fR called by a group administrator with a group name only prompts for the new password of the \fIgroup\fR\&. .PP If a password is set the members can still use \fBnewgrp\fR(1) without a password, and non\-members must supply the password\&. .SS "Notes sur les mots de passe de groupe" .PP Les mots de passe de groupe repr\('esentent naturellement un risque en mati\(`ere de s\('ecurit\('e, puisque plusieurs personnes ont connaissance du mot de passe\&. Cependant, les groupes sont utiles pour permettre la coop\('eration entre diff\('erents utilisateurs\&. .SH "OPTIONS" .PP Except for the \fB\-A\fR and \fB\-M\fR options, the options cannot be combined\&. .PP The options which apply to the \fBgpasswd\fR command are: .PP \fB\-a\fR, \fB\-\-add\fR\ \&\fIuser\fR .RS 4 Add the \fIuser\fR to the named \fIgroup\fR\&. .RE .PP \fB\-d\fR, \fB\-\-delete\fR\ \&\fIuser\fR .RS 4 Remove the \fIuser\fR from the named \fIgroup\fR\&. .RE .PP \fB\-h\fR, \fB\-\-help\fR .RS 4 Afficher un message d\*(Aqaide et quitter\&. .RE .PP \fB\-Q\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\&. Only absolute paths are supported\&. .RE .PP \fB\-r\fR, \fB\-\-remove\-password\fR .RS 4 Remove the password from the named \fIgroup\fR\&. The group password will be empty\&. Only group members will be allowed to use \fBnewgrp\fR to join the named \fIgroup\fR\&. .RE .PP \fB\-R\fR, \fB\-\-restrict\fR .RS 4 Restrict the access to the named \fIgroup\fR\&. The group password is set to "!"\&. Only group members with a password will be allowed to use \fBnewgrp\fR to join the named \fIgroup\fR\&. .RE .PP \fB\-A\fR, \fB\-\-administrators\fR\ \&\fIuser\fR,\&.\&.\&. .RS 4 Configurer la liste des administrateurs\&. .RE .PP \fB\-M\fR, \fB\-\-members\fR\ \&\fIuser\fR,\&.\&.\&. .RS 4 Configurer la liste des membres du groupe\&. .RE .SH "AVERTISSEMENTS" .PP This tool only operates on the /etc/group and /etc/gshadow files\&. Thus you cannot change any NIS or LDAP group\&. This must be performed on the corresponding server\&. .SH "CONFIGURATION" .PP The following configuration variables in /etc/login\&.defs change the behavior of this tool: .SH "FICHIERS" .PP /etc/group .RS 4 Informations sur les groupes\&. .RE .PP /etc/gshadow .RS 4 Informations s\('ecuris\('ees sur les groupes\&. .RE .SH "VOIR AUSSI" .PP \fBnewgrp\fR(1), \fBgroupadd\fR(8), \fBgroupdel\fR(8), \fBgroupmod\fR(8), \fBgrpck\fR(8), \fBgroup\fR(5), \fBgshadow\fR(5)\&.