<?xml version='1.0'?> <!--*-nxml-*-->
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<!--
- This file is part of systemd.
-
- Copyright 2014 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
--->
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
<refentry id="systemd-sysusers"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>systemd-sysusers</title>
<productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
</refentryinfo>
<refmeta>
<citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
</para>
- <para>If invoked with no arguments, it applies all directives from
- all files found. If one or more filenames are passed on the
- command line, only the directives in these files are applied. If
- only the basename of a file is specified, all directories as
- specified in
- <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- are searched for a matching file. If the string
- <literal>-</literal> is specified instead of a filename, entries from the
- standard input of the process are read.</para>
+ <para>If invoked with no arguments, it applies all directives from all files
+ found in the directories specified by
+ <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ When invoked with positional arguments, if option
+ <option>--replace=<replaceable>PATH</replaceable></option> is specified, arguments
+ specified on the command line are used instead of the configuration file
+ <replaceable>PATH</replaceable>. Otherwise, just the configuration specified by
+ the command line arguments is executed. The string <literal>-</literal> may be
+ specified instead of a filename to instruct <command>systemd-sysusers</command>
+ to read the configuration from standard input. If only the basename of a file is
+ specified, all configuration directories are searched for a matching file and
+ the file found that has the highest priority is executed.</para>
</refsect1>
<refsect1>
paths. </para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><option>--replace=<replaceable>PATH</replaceable></option></term>
+ <listitem><para>When this option is given, one ore more positional arguments
+ must be specified. All configuration files found in the directories listed in
+ <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ will be read, and the configuration given on the command line will be
+ handled instead of and with the same priority as the configuration file
+ <replaceable>PATH</replaceable>.</para>
+
+ <para>This option is intended to be used when package installation scripts
+ are running and files belonging to that package are not yet available on
+ disk, so their contents must be given on the command line, but the admin
+ configuration might already exist and should be given higher priority.
+ </para>
+
+ <example>
+ <title>RPM installation script for radvd</title>
+
+ <programlisting>echo 'u radvd - "radvd daemon"' | \
+ systemd-sysusers --replace=/usr/lib/sysusers.d/radvd.conf -</programlisting>
+
+ <para>This will create the radvd user as if
+ <filename>/usr/lib/sysusers.d/radvd.conf</filename> was already on disk.
+ An admin might override the configuration specified on the command line by
+ placing <filename>/etc/sysusers.d/radvd.conf</filename> or even
+ <filename>/etc/sysusers.d/00-overrides.conf</filename>.</para>
+
+ <para>Note that this is the expanded form, and when used in a package, this
+ would be written using a macro with "radvd" and a file containing the
+ configuration line as arguments.</para>
+ </example>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--inline</option></term>
+ <listitem><para>Treat each positional argument as a separate configuration
+ line instead of a file name.</para></listitem>
+ </varlistentry>
+
+ <xi:include href="standard-options.xml" xpointer="cat-config" />
+ <xi:include href="standard-options.xml" xpointer="no-pager" />
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
</variablelist>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <ulink url="https://systemd.io/UIDS-GIDS">Users, Groups, UIDs and GIDs on systemd systems</ulink>
</para>
</refsect1>
projects / thirdparty / systemd.git / blobdiff