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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
		"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
<refentry id='groupmems.8'>
  <!-- $Id: groupmems.8.xml,v 1.7 2005/06/15 12:39:27 kloczek Exp $ -->
  <refmeta>
    <refentrytitle>groupmems</refentrytitle>
    <manvolnum>8</manvolnum>
  </refmeta>
  <refnamediv id='name'>
    <refname>groupmems</refname>
    <refpurpose>Administer members of a user's primary group</refpurpose>
  </refnamediv>

  <refsynopsisdiv id='synopsis'>
    <cmdsynopsis>
      <command>groupmems</command>    
      <group choice='plain'>
        <arg choice='plain'>-a <replaceable>user_name</replaceable></arg>
        <arg choice='plain'>-d <replaceable>user_name</replaceable></arg>
        <arg choice='plain'>-l </arg><arg choice='plain'>-D </arg>
        <arg choice='opt'>-g <replaceable>group_name</replaceable></arg>
      </group>
    </cmdsynopsis>
  </refsynopsisdiv>
  
  <refsect1 id='description'>
    <title>DESCRIPTION</title>
    <para>
      The <command>groupmems</command> utility allows a user to administer
      his/her own group membership list without the requirement of super
      user privileges. The <command>groupmems</command> utility is for
      systems that configure its users to be in their own name sake primary
      group (i.e., guest / guest).
    </para>
    
    <para>Only the super user, as administrator, can use
      <command>groupmems</command> to alter the memberships of other groups.
    </para>
  </refsect1>
  
  <refsect1 id='options'>
    <title>OPTIONS</title>
    <para>
      The options which apply to the <command>groupmems</command> command
      are:
    </para>
    <variablelist remap='IP'>
      <varlistentry>
        <term><option>-a</option> <replaceable>user_name</replaceable></term>
        <listitem>
          <para>Add a new user to the group membership list.</para>
        </listitem>
      </varlistentry>
      <varlistentry>
        <term><option>-d</option> <replaceable>user_name</replaceable></term>
        <listitem>
          <para>Delete a user from the group membership list.</para>
        </listitem>
      </varlistentry>
      <varlistentry>
        <term><option>-D</option></term>
        <listitem>
          <para>Delete all users from the group membership list.</para>
        </listitem>
      </varlistentry>
      <varlistentry>
        <term><option>-g</option> <replaceable>group_name</replaceable></term>
        <listitem>
          <para>The super user can specify which group membership
            list to modify.
          </para>
        </listitem>
      </varlistentry>
      <varlistentry>
        <term><option>-l</option></term>
        <listitem>
          <para>List the group membership list.</para>
        </listitem>
      </varlistentry>
    </variablelist>
  </refsect1>
  
  <refsect1 id='setup'>
    <title>SETUP</title>
    <para>
      The <command>groupmems</command> executable should be in mode
      <literal>2770</literal> as user <emphasis remap='B'>root</emphasis>
      and in group <emphasis remap='B'>groups</emphasis>. The system
      administrator can add users to group groups to allow or disallow them
      using the <command>groupmems</command> utility to manage their own
      group membership list.
    </para>
    
    <para>     $ groupadd -r groups
      <!-- .br -->
      $ chmod 2770 groupmems
      <!-- .br -->
      $ chown root.groups groupmems
      <!-- .br -->
      $ groupmems -g groups -a gk4
    </para>
  </refsect1>
  
  <refsect1 id='files'>
    <title>FILES</title>
    <variablelist>
      <varlistentry>
        <term><filename>/etc/group</filename></term>
        <listitem>group account information</listitem>
      </varlistentry>
      <varlistentry>
        <term><filename>/etc/gshadow</filename></term>
        <listitem>secure group account information</listitem>
      </varlistentry>
    </variablelist>
  </refsect1>
  
  <refsect1 id='see_also'>
    <title>SEE ALSO</title>
    <para><citerefentry>
        <refentrytitle>chfn</refentrytitle><manvolnum>1</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>chsh</refentrytitle><manvolnum>1</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>passwd</refentrytitle><manvolnum>1</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>groupadd</refentrytitle><manvolnum>8</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>groupdel</refentrytitle><manvolnum>8</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>useradd</refentrytitle><manvolnum>8</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>userdel</refentrytitle><manvolnum>8</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>usermod</refentrytitle><manvolnum>8</manvolnum>
      </citerefentry>
    </para>
  </refsect1>
  
  <refsect1 id='author'>
    <title>AUTHOR</title>
    <para>George Kraft IV (gk4@us.ibm.com)</para>
  </refsect1>
</refentry>
