shadow/man/groupmod.8.xml

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<?xml version="1.0" encoding="UTF-8"?>
<refentry id='groupmod.8'>
<!-- $Id: groupmod.8.xml,v 1.20 2007/02/01 20:49:25 kloczek Exp $ -->
<refmeta>
<refentrytitle>groupmod</refentrytitle>
<manvolnum>8</manvolnum>
<refmiscinfo class="sectdesc">System Management Commands</refmiscinfo>
</refmeta>
<refnamediv id='name'>
<refname>groupmod</refname>
<refpurpose>modify a group definition on the system</refpurpose>
</refnamediv>
<!-- body begins here -->
<refsynopsisdiv id='synopsis'>
<cmdsynopsis>
<command>groupmod</command>
<arg choice='opt'>
<replaceable>options</replaceable>
</arg>
<arg choice='plain'><replaceable>GROUP</replaceable></arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 id='description'>
<title>DESCRIPTION</title>
<para>
The <command>groupmod</command> command modifies the definition of the
specified <replaceable>GROUP</replaceable> by modifying the appropriate
entry in the group database.
</para>
</refsect1>
<refsect1 id='options'>
<title>OPTIONS</title>
<para>
The options which apply to the <command>groupmod</command> command
are:
</para>
<variablelist remap='IP'>
<varlistentry>
<term>
<option>-g</option>, <option>--gid</option> <replaceable>GID</replaceable>
</term>
<listitem>
<para>
The group ID of the given <replaceable>GROUP</replaceable> will
be changed to <replaceable>GID</replaceable>. The value of
<replaceable>GID</replaceable> must be a non-negative decimal
integer. This value must be unique, unless the
<option>-o</option> option is used. Values between 0 and 999 are
typically reserved for system groups. Any files that have the
old group ID and must continue to belong to
<replaceable>GROUP</replaceable>, must have their group ID
changed manually.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-h</option>, <option>--help</option></term>
<listitem>
<para>Display help message and exit.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-n</option>, <option>--new-name</option>
<replaceable>NEW_GROUP</replaceable>
</term>
<listitem>
<para>
The name of the group will be changed from <replaceable>GROUP</replaceable>
to <replaceable>NEW_GROUP</replaceable> name.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-o</option>, <option>--non-unique</option>
</term>
<listitem>
<para>
When used with the <option>-g</option> option, allow to change the
group <replaceable>GID</replaceable> to a non-unique value.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='files'>
<title>FILES</title>
<variablelist>
<varlistentry>
<term><filename>/etc/group</filename></term>
<listitem>
<para>Group account information.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/gshadow</filename></term>
<listitem>
<para>Secure group account information.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='exit_values'>
<title>EXIT VALUES</title>
<para>
The <command>groupmod</command> command exits with the following values:
<variablelist>
<varlistentry>
<term><replaceable>0</replaceable></term>
<listitem>
<para>success</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>2</replaceable></term>
<listitem>
<para>invalid command syntax</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>3</replaceable></term>
<listitem>
<para>invalid argument to option</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>4</replaceable></term>
<listitem>
<para>specified group doesn't exist</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>6</replaceable></term>
<listitem>
<para>specified group doesn't exist</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>9</replaceable></term>
<listitem>
<para>group name already in use</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>10</replaceable></term>
<listitem>
<para>can't update group file</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</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>gpasswd</refentrytitle><manvolnum>8</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>
</refentry>