shadow/man/userdel.8.xml
2009-05-17 16:02:35 +00:00

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<?xml version="1.0" encoding="UTF-8"?>
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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 MAIL_DIR SYSTEM "login.defs.d/MAIL_DIR.xml">
<!ENTITY MAX_MEMBERS_PER_GROUP SYSTEM "login.defs.d/MAX_MEMBERS_PER_GROUP.xml">
<!ENTITY USERDEL_CMD SYSTEM "login.defs.d/USERDEL_CMD.xml">
<!ENTITY USERGROUPS_ENAB SYSTEM "login.defs.d/USERGROUPS_ENAB.xml">
]>
<refentry id='userdel.8'>
<!-- $Id$ -->
<refmeta>
<refentrytitle>userdel</refentrytitle>
<manvolnum>8</manvolnum>
<refmiscinfo class="sectdesc">System Management Commands</refmiscinfo>
</refmeta>
<refnamediv id='name'>
<refname>userdel</refname>
<refpurpose>delete a user account and related files</refpurpose>
</refnamediv>
<refsynopsisdiv id='synopsis'>
<cmdsynopsis>
<command>userdel</command>
<arg choice='opt'>options</arg>
<arg choice='plain'>
<replaceable>LOGIN</replaceable>
</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 id='description'>
<title>DESCRIPTION</title>
<para>
The <command>userdel</command> command modifies the system account
files, deleting all entries that refer to the user name <emphasis
remap='I'>LOGIN</emphasis>. The named user must exist.
</para>
</refsect1>
<refsect1 id='options'>
<title>OPTIONS</title>
<para>
The options which apply to the <command>userdel</command> command are:
</para>
<variablelist remap='IP'>
<varlistentry>
<term>
<option>-f</option>, <option>--force</option>
</term>
<listitem>
<para>
This option forces the removal of the user account, even if the
user is still
logged in. It also forces <command>userdel</command> to remove
the user's home directory and mail spool, even if another
user uses the same home directory or if the mail spool is not
owned by the specified user. If
<emphasis>USERGROUPS_ENAB</emphasis> is defined to <emphasis
remap='I'>yes</emphasis> in <filename>/etc/login.defs</filename>
and if a group exists with the same name as the deleted user,
then this group will be removed, even if it is still the primary
group of another user.
</para>
<para>
<emphasis>Note:</emphasis> This option is dangerous and may leave
your system in an inconsistent state.
</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>-r</option>, <option>--remove</option>
</term>
<listitem>
<para>
Files in the user's home directory will be removed along with
the home directory itself and the user's mail spool. Files
located in other file systems will have to be searched for and
deleted manually.
</para>
<para>
The mail spool is defined by the <emphasis>MAIL_DIR</emphasis>
variable in the <filename>login.defs</filename> file.
</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>
&MAIL_DIR; <!-- documents also MAIL_FILE -->
&MAX_MEMBERS_PER_GROUP;
&USERDEL_CMD;
&USERGROUPS_ENAB;
</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/login.defs</filename></term>
<listitem>
<para>Shadow password suite configuration.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/passwd</filename></term>
<listitem>
<para>User account information.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><filename>/etc/shadow</filename></term>
<listitem>
<para>Secure user account information.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='exit_values'>
<title>EXIT VALUES</title>
<para>
The <command>userdel</command> command exits with the following values:
<variablelist>
<varlistentry>
<term><replaceable>0</replaceable></term>
<listitem>
<para>success</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>1</replaceable></term>
<listitem>
<para>can't update password file</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>2</replaceable></term>
<listitem>
<para>invalid command syntax</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>6</replaceable></term>
<listitem>
<para>specified user doesn't exist</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>8</replaceable></term>
<listitem>
<para>user currently logged in</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>10</replaceable></term>
<listitem>
<para>can't update group file</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>12</replaceable></term>
<listitem>
<para>can't remove home directory</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 id='caveats'>
<title>CAVEATS</title>
<para>
<command>userdel</command> will not allow you to remove an account if
the user is currently logged in. You must kill any running processes
which belong to an account that you are deleting.
</para>
<para>You may not remove any NIS attributes on a NIS client. This must
be performed on the NIS server.
</para>
<para>If <emphasis>USERGROUPS_ENAB</emphasis> is defined to <emphasis
remap='I'>yes</emphasis> in <filename>/etc/login.defs</filename>,
<command>userdel</command> will delete the group with the same name
as the user. To avoid inconsistencies in the passwd and group
databases, <command>userdel</command> will check that this group is
not used as a primary group for another user, and will just warn
without deleting the group otherwise. The <option>-f</option> option
can force the deletion of this group.
</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>login.defs</refentrytitle><manvolnum>5</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>groupmod</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>useradd</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>usermod</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>.
</para>
</refsect1>
</refentry>