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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
This file is part of systemd.
Copyright 2012 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/>.
-->
<refentry id="systemd-delta">
<refentryinfo>
<title>systemd-delta</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Lennart</firstname>
<surname>Poettering</surname>
<email>lennart@poettering.net</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>systemd-delta</refentrytitle>
<manvolnum>1</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-delta</refname>
<refpurpose>Find overridden configuration files</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>systemd-delta <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt" rep="repeat">SUFFIX</arg></command>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>systemd-delta</command> may be used to
identify and compare configuration files in
<filename>/etc</filename> that override default
counterparts in <filename>/usr</filename>. The command
line argument can be one or more name of a subdirectories of
<filename>/etc</filename> or
<filename>/usr/lib</filename> to compare, such as
<filename>tmpfiles.d</filename>, <filename>sysctl.d</filename> or
<filename>systemd/system</filename>.</para>
<para>When no argument is specified a number of
well-known subdirectories are searched for overridden
files.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist>
<varlistentry>
<term><option>-h</option></term>
<term><option>--help</option></term>
<listitem><para>Prints a short help
text and exits.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--version</option></term>
<listitem><para>Prints a short version
string and exits.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--no-pager</option></term>
<listitem><para>Do not pipe output into a
pager.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--type=</option></term>
<term><option>-t</option></term>
<listitem><para>When listing the
differences, only list those that are
asked for. The list itself is a
comma-separated list of desired
difference types.</para>
<para>Recognized types are:
<variablelist>
<varlistentry>
<term><varname>masked</varname></term>
<listitem><para>Show masked files</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>equivalent</varname></term>
<listitem><para>Show overridden
files that while overridden, do
not differ in content.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>redirected</varname></term>
<listitem><para>Show files that
are redirected to another.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>overridden</varname></term>
<listitem><para>Show overridden,
and changed files.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>unchanged</varname></term>
<listitem><para>Show unmodified
files too.</para></listitem>
</varlistentry>
</variablelist>
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--diff=</option></term>
<listitem><para>When showing modified
files, when a file is overridden show a
diff as well. This option takes a
boolean argument. If omitted it defaults
to <option>true</option>.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Exit status</title>
<para>On success 0 is returned, a non-zero failure
code otherwise.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
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