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shadow/man/groupadd.8.xml
nekral-guest 057cbaa4ae * NEWS, src/groupadd.c, man/groupadd.8.xml: Add --root option. Open 
audit after the potential chroot.
	* src/groupadd.c: Check atexit failures.
	* src/groupadd.c: Return E_SUCCESS instead of exit'ing at the end
	of main().
2011-11-06 18:37:45 +00:00

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<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (c) 1991 , Julianne Frances Haugh
Copyright (c) 2007 - 2011, Nicolas François
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the copyright holders or contributors may not be used to
endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY GID_MAX SYSTEM "login.defs.d/GID_MAX.xml">
<!ENTITY MAX_MEMBERS_PER_GROUP SYSTEM "login.defs.d/MAX_MEMBERS_PER_GROUP.xml">
<!ENTITY SYS_GID_MAX SYSTEM "login.defs.d/SYS_GID_MAX.xml">
<!-- SHADOW-CONFIG-HERE -->
]>
<refentry id='groupadd.8'>
<!-- $Id$ -->
<refmeta>
<refentrytitle>groupadd</refentrytitle>
<manvolnum>8</manvolnum>
<refmiscinfo class="sectdesc">System Management Commands</refmiscinfo>
<refmiscinfo class="source">shadow-utils</refmiscinfo>
<refmiscinfo class="version">&SHADOW_UTILS_VERSION;</refmiscinfo>
</refmeta>
<refnamediv id='name'>
<refname>groupadd</refname>
<refpurpose>create a new group</refpurpose>
</refnamediv>
<!-- body begins here -->
<refsynopsisdiv id='synopsis'>
<cmdsynopsis>
<command>groupadd</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>groupadd</command> command creates a new group
account using the values specified on the command line plus the default
values from the system. The new group will be entered into the system
files as needed.
</para>
</refsect1>
<refsect1 id='options'>
<title>OPTIONS</title>
<para>
The options which apply to the <command>groupadd</command> command
are:
</para>
<variablelist remap='IP'>
<varlistentry>
<term>
<option>-f</option>, <option>--force</option>
</term>
<listitem>
<para>
This option causes the command to simply exit with success
status if the specified group already exists. When used with
<option>-g</option>, and the specified GID already exists,
another (unique) GID is chosen (i.e. <option>-g</option> is
turned off).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-g</option>, <option>--gid</option> <replaceable>GID</replaceable>
</term>
<listitem>
<para>The numerical value of the group's ID. This value must be
unique, unless the <option>-o</option> option is used. The value
must be non-negative. The default is to use the smallest ID
value greater than 999 and greater than every other group.
Values between 0 and 999 are typically reserved for system
accounts.
</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>-K</option>, <option>--key</option> <replaceable>KEY</replaceable>=<replaceable>VALUE</replaceable>
</term>
<listitem>
<para>
Overrides <filename>/etc/login.defs</filename> defaults
(GID_MIN, GID_MAX and others). Multiple
<option>-K</option> options can be specified.
</para>
<para>
Example: <option>-K </option><replaceable>GID_MIN</replaceable>=<replaceable>100</replaceable>
<option>-K </option><replaceable>GID_MAX</replaceable>=<replaceable>499</replaceable>
</para>
<para>
Note: <option>-K </option>
<replaceable>GID_MIN</replaceable>=<replaceable>10</replaceable>,<replaceable>GID_MAX</replaceable>=<replaceable>499</replaceable>
doesn't work yet.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-o</option>, <option>--non-unique</option>
</term>
<listitem>
<para>
This option permits to add a group with a non-unique GID.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-p</option>, <option>--password</option>
<replaceable>PASSWORD</replaceable>
</term>
<listitem>
<para>
The encrypted password, as returned by <citerefentry>
<refentrytitle>crypt</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>. The default is to disable the password.
</para>
<para>
<emphasis role="bold">Note:</emphasis> This option is not
recommended because the password (or encrypted password) will
be visible by users listing the processes.
</para>
<para>
You should make sure the password respects the system's
password policy.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-r</option>, <option>--system</option>
</term>
<listitem>
<para>
Create a system group.
</para>
<para>
The numeric identifiers of new system groups are chosen in
the <option>SYS_GID_MIN</option>-<option>SYS_GID_MAX</option>
range, defined in <filename>login.defs</filename>, instead of
<option>GID_MIN</option>-<option>GID_MAX</option>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-R</option>, <option>--root</option>
<replaceable>CHROOT_DIR</replaceable>
</term>
<listitem>
<para>
Apply changes in the <replaceable>CHROOT_DIR</replaceable>
directory and use the configuration files from the
<replaceable>CHROOT_DIR</replaceable> directory.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='configuration'>
<title>CONFIGURATION</title>
<para>
The following configuration variables in
<filename>/etc/login.defs</filename> change the behavior of this
tool:
</para>
<variablelist>
&GID_MAX; <!-- documents also GID_MIN -->
&MAX_MEMBERS_PER_GROUP;
&SYS_GID_MAX; <!-- documents also SYS_GID_MIN -->
</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 condition="gshadow">
<term><filename>/etc/gshadow</filename></term>
<listitem>
<para>Secure group account information.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/login.defs</filename></term>
<listitem>
<para>Shadow password suite configuration.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='caveats'>
<title>CAVEATS</title>
<para>
Groupnames must start with a lower case letter or an underscore,
followed by lower case letters, digits, underscores, or dashes.
They can end with a dollar sign.
In regular expression terms: [a-z_][a-z0-9_-]*[$]?
</para>
<para>
Groupnames may only be up to &GROUP_NAME_MAX_LENGTH; characters long.
</para>
<para>
You may not add a NIS or LDAP group. This must be performed on the
corresponding server.
</para>
<para>
If the groupname already exists in an external group database such
as NIS or LDAP, <command>groupadd</command> will deny the group
creation request.
</para>
</refsect1>
<refsect1 id='exit_values'>
<title>EXIT VALUES</title>
<para>
The <command>groupadd</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>GID not unique (when <option>-o</option> not used)</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>9</replaceable></term>
<listitem>
<para>group name not unique</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>groupdel</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>groupmod</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>login.defs</refentrytitle><manvolnum>5</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>
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