79bf2081fe
(last changelog entry: 2007-02-01) This also adds the files which were present in the CVS repository, but not present in the shadow archives.
137 lines
4.7 KiB
XML
137 lines
4.7 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<refentry id='gpasswd.1'>
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<!-- $Id: gpasswd.1.xml,v 1.21 2006/10/28 12:29:04 kloczek Exp $ -->
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<refmeta>
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<refentrytitle>gpasswd</refentrytitle>
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<manvolnum>1</manvolnum>
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<refmiscinfo class="sectdesc">User Commands</refmiscinfo>
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</refmeta>
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<refnamediv id='name'>
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<refname>gpasswd</refname>
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<refpurpose>administer the <filename>/etc/group</filename> file</refpurpose>
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</refnamediv>
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<!-- body begins here -->
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<refsynopsisdiv id='synopsis'>
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<cmdsynopsis>
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<command>gpasswd</command>
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<arg choice='plain'>
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<replaceable>group</replaceable>
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</arg>
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</cmdsynopsis>
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<cmdsynopsis>
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<command>gpasswd</command>
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<arg choice='plain'>-a <replaceable>user</replaceable></arg>
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<arg choice='plain'><replaceable>group</replaceable></arg>
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</cmdsynopsis>
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<cmdsynopsis>
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<command>gpasswd</command>
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<arg choice='plain'>-d <replaceable>user</replaceable></arg>
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<arg choice='plain'><replaceable>group</replaceable></arg>
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</cmdsynopsis>
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<cmdsynopsis>
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<command>gpasswd</command>
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<arg choice='plain'>-R <replaceable>group</replaceable></arg>
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</cmdsynopsis>
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<cmdsynopsis>
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<command>gpasswd</command>
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<arg choice='plain'>-r <replaceable>group</replaceable></arg>
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</cmdsynopsis>
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<cmdsynopsis>
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<command>gpasswd</command>
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<arg choice='opt' rep='repeat'>-A <replaceable>user,</replaceable></arg>
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<arg choice='opt' rep='repeat'>-M <replaceable>user,</replaceable></arg>
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<arg choice='plain'><replaceable>group</replaceable></arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1 id='description'>
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<title>DESCRIPTION</title>
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<para>
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The <command>gpasswd</command> command is used to administer the
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<filename>/etc/group</filename> file (and
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<filename>/etc/gshadow</filename> file if compiled with SHADOWGRP
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defined). Every group can have administrators, members and a password.
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System administrator can use <option>-A</option> option to define
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group administrator(s) and <option>-M</option> option to define
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members and has all rights of group administrators and members.
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</para>
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<refsect2 id='notes_about_group_passwords'>
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<title>Notes about group passwords</title>
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<para>
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Group passwords are an inherent security problem since more than one
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person is permitted to know the password. However, groups are a
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useful tool for permitting co-operation between different users.
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</para>
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</refsect2>
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</refsect1>
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<refsect1 id='options'>
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<title>OPTIONS</title>
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<para>
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Group administrator can add and delete users using <option>-a</option>
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and <option>-d</option> options respectively. Administrators can use
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<option>-r</option> option to remove group password. When no password
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is set only group members can use <command>newgrp</command> to join
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the group. Option <option>-R</option> disables access via a password
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to the group through <command>newgrp</command> command (however
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members will still be able to switch to this group).
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</para>
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<para>
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<command>gpasswd</command> called by a group administrator with group
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name only prompts for the group password. If password is set the
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members can still <citerefentry>
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<refentrytitle>newgrp</refentrytitle><manvolnum>1</manvolnum>
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</citerefentry> without a password, non-members must supply the
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password.
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</para>
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</refsect1>
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<refsect1 id='files'>
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<title>FILES</title>
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<variablelist>
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<varlistentry>
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<term><filename>/etc/group</filename></term>
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<listitem>
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<para>Group account information.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><filename>/etc/gshadow</filename></term>
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<listitem>
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<para>Secure group account information.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id='see_also'>
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<title>SEE ALSO</title>
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<para>
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<citerefentry>
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<refentrytitle>newgrp</refentrytitle><manvolnum>1</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>gshadow</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>groupadd</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>groupdel</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>groupmod</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>grpck</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>group</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry>.
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</para>
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</refsect1>
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</refentry>
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