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1eecafb8c1
As requested in https://github.com/systemd/systemd/pull/4864#pullrequestreview-12372557. docbook will substitute triple dots for the ellipsis in man output, so this has no effect on the troff output, only on HTML, making it infinitesimally nicer. In some places we show output from programs, which use dots, and those places should not be changed. In some tables, the alignment would change if dots were changed to the ellipsis which is only one character. Since docbook replaces the ellipsis automatically, we should leave those be. This patch changes all other places.
206 lines
7.2 KiB
XML
206 lines
7.2 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd-delta"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>systemd-delta</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-delta</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-delta</refname>
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<refpurpose>Find overridden configuration files</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>systemd-delta</command>
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<arg choice="opt" rep="repeat">OPTIONS</arg>
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<arg choice="opt" rep="repeat"><replaceable>PREFIX</replaceable><optional>/<replaceable>SUFFIX</replaceable></optional>|<replaceable>SUFFIX</replaceable></arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>systemd-delta</command> may be used to identify and
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compare configuration files that override other configuration
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files. Files in <filename>/etc</filename> have highest priority,
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files in <filename>/run</filename> have the second highest
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priority, …, files in <filename>/lib</filename> have lowest
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priority. Files in a directory with higher priority override files
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with the same name in directories of lower priority. In addition,
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certain configuration files can have <literal>.d</literal>
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directories which contain "drop-in" files with configuration
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snippets which augment the main configuration file. "Drop-in"
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files can be overridden in the same way by placing files with the
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same name in a directory of higher priority (except that, in case
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of "drop-in" files, both the "drop-in" file name and the name of
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the containing directory, which corresponds to the name of the
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main configuration file, must match). For a fuller explanation,
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see
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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</para>
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<para>The command line argument will be split into a prefix and a
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suffix. Either is optional. The prefix must be one of the
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directories containing configuration files
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(<filename>/etc</filename>, <filename>/run</filename>,
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<filename>/usr/lib</filename>, …). If it is given, only
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overriding files contained in this directory will be shown.
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Otherwise, all overriding files will be shown. The suffix must be
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a name of a subdirectory containing configuration files like
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<filename>tmpfiles.d</filename>, <filename>sysctl.d</filename> or
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<filename>systemd/system</filename>. If it is given, only
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configuration files in this subdirectory (across all configuration
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paths) will be analyzed. Otherwise, all configuration files will
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be analyzed. If the command line argument is not given at all, all
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configuration files will be analyzed. See below for some
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examples.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist>
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<varlistentry>
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<term><option>-t</option></term>
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<term><option>--type=</option></term>
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<listitem><para>When listing the differences, only list those
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that are asked for. The list itself is a comma-separated list
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of desired difference types.</para>
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<para>Recognized types are:
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<variablelist>
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<varlistentry>
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<term><varname>masked</varname></term>
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<listitem><para>Show masked files</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>equivalent</varname></term>
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<listitem><para>Show overridden files that while
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overridden, do not differ in content.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>redirected</varname></term>
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<listitem><para>Show files that are redirected to
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another.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>overridden</varname></term>
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<listitem><para>Show overridden, and changed
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files.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>extended</varname></term>
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<listitem><para>Show <filename>*.conf</filename> files
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in drop-in directories for units.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>unchanged</varname></term>
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<listitem><para>Show unmodified files
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too.</para></listitem>
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</varlistentry>
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</variablelist>
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--diff=</option></term>
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<listitem><para>When showing modified files, when a file is
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overridden show a diff as well. This option takes a boolean
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argument. If omitted, it defaults to
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<option>true</option>.</para></listitem>
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</varlistentry>
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<xi:include href="standard-options.xml" xpointer="help" />
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<xi:include href="standard-options.xml" xpointer="version" />
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<xi:include href="standard-options.xml" xpointer="no-pager" />
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>To see all local configuration:</para>
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<programlisting>systemd-delta</programlisting>
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<para>To see all runtime configuration:</para>
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<programlisting>systemd-delta /run</programlisting>
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<para>To see all system unit configuration changes:</para>
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<programlisting>systemd-delta systemd/system</programlisting>
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<para>To see all runtime "drop-in" changes for system units:</para>
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<programlisting>systemd-delta --type=extended /run/systemd/system</programlisting>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>On success, 0 is returned, a non-zero failure code
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otherwise.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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