mirror of
https://github.com/shadow-maint/shadow.git
synced 2024-12-01 14:03:55 +08:00
282 lines
8.4 KiB
XML
282 lines
8.4 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!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">
|
|
]>
|
|
<refentry id='groupadd.8'>
|
|
<!-- $Id$ -->
|
|
<refmeta>
|
|
<refentrytitle>groupadd</refentrytitle>
|
|
<manvolnum>8</manvolnum>
|
|
<refmiscinfo class="sectdesc">System Management Commands</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>
|
|
<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>
|
|
</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 choosen 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>
|
|
</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 begin with a lower case letter or an underscore,
|
|
and only lower case letters, underscores, dashes, and dollar signs
|
|
may follow. In regular expression terms: [a-z_][a-z0-9_-]*[$]?
|
|
</para>
|
|
<para>
|
|
Groupnames may only be up to 16 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>
|