along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
-<refentry id="systemd-delta">
+<refentry id="systemd-delta"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>systemd-delta</title>
<refsynopsisdiv>
<cmdsynopsis>
- <command>systemd-delta <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt" rep="repeat">SUFFIX</arg></command>
+ <command>systemd-delta</command>
+ <arg choice="opt" rep="repeat">OPTIONS</arg>
+ <arg choice="opt" rep="repeat"><replaceable>PREFIX</replaceable><optional>/<replaceable>SUFFIX</replaceable></optional>|<replaceable>SUFFIX</replaceable></arg>
</cmdsynopsis>
</refsynopsisdiv>
<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>
+ identify and compare configuration files that override
+ other configuration files. Files in
+ <filename>/etc</filename> have highest priority, files
+ in <filename>/run</filename> have the second highest
+ priority, ..., files in <filename>/lib</filename> have
+ lowest priority. Files in a directory with higher
+ priority override files with the same name in
+ directories of lower priority. In addition, certain
+ configuration files can have <literal>.d</literal>
+ directories which contain "drop-in" files with
+ configuration snippets which augment the main
+ configuration file. "Drop-in" files can be overriden
+ in the same way by placing files with the same name in
+ a directory of higher priority (except that in case of
+ "drop-in" files, both the "drop-in" file name and the
+ name of the containing directory, which corresponds to
+ the name of the main configuration file, must match).
+ For a fuller explanation, see
+ <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para>
+
+ <para>The command line argument will be split into a
+ prefix and a suffix. Either is optional. The prefix
+ must be one of the directories containing
+ configuration files (<filename>/etc</filename>,
+ <filename>/run</filename>,
+ <filename>/usr/lib</filename>, ...). If it is given,
+ only overriding files contained in this directory will
+ be shown. Otherwise, all overriding files will be
+ shown. The suffix must be a name of a subdirectory
+ containing configuration files like
+ <filename>tmpfiles.d</filename>,
+ <filename>sysctl.d</filename> or
+ <filename>systemd/system</filename>. If it is given,
+ only configuration files in this subdirectory (across
+ all configuration paths) will be analyzed. Otherwise,
+ all configuration files will be analyzed. If the
+ commandline argument is not given at all, all
+ configuration files will be analyzed. See below for
+ some examples.</para>
</refsect1>
<refsect1>
<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>
+ <term><option>--type=</option></term>
<listitem><para>When listing the
differences, only list those that are
and changed files.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>extended</varname></term>
+
+ <listitem><para>Show *.conf files in drop-in
+ directories for units.</para></listitem>
+ </varlistentry>
+
<varlistentry>
<term><varname>unchanged</varname></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
+ boolean argument. If omitted, it defaults
to <option>true</option>.</para></listitem>
</varlistentry>
+ <xi:include href="standard-options.xml" xpointer="help" />
+ <xi:include href="standard-options.xml" xpointer="version" />
+ <xi:include href="standard-options.xml" xpointer="no-pager" />
</variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>To see all local configuration:</para>
+ <programlisting>systemd-delta</programlisting>
+
+ <para>To see all runtime configuration:</para>
+ <programlisting>systemd-delta /run</programlisting>
+
+ <para>To see all system unit configuration changes:</para>
+ <programlisting>systemd-delta systemd/system</programlisting>
+ <para>To see all runtime "drop-in" changes for system units:</para>
+ <programlisting>systemd-delta --type=extended /run/systemd/system</programlisting>
</refsect1>
<refsect1>
<title>Exit status</title>
- <para>On success 0 is returned, a non-zero failure
+ <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>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
</para>
</refsect1>
~ianmdlvl / elogind.git / blobdiff