<arg choice="plain">set-log-level</arg>
<arg choice="opt"><replaceable>LEVEL</replaceable></arg>
</cmdsynopsis>
+ <cmdsynopsis>
+ <command>systemd-analyze</command>
+ <arg choice="opt" rep="repeat">OPTIONS</arg>
+ <arg choice="plain">verify</arg>
+ <arg choice="opt" rep="repeat"><replaceable>FILES</replaceable></arg>
+ </cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<para><command>systemd-analyze</command> may be used
to determine system boot-up performance statistics and
retrieve other state and tracing information from the
- system and service manager.</para>
+ system and service manager, and to verify the
+ correctness of unit files.</para>
<para><command>systemd-analyze time</command>
prints the time spent in the kernel before
described in
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>).</para>
+ <para><command>systemd-analyze verify</command> will
+ load unit files and print warnings if any errors are
+ detected. Files specified on the command line will be
+ loaded, but also any other units referenced by
+ them. This command works by prepending the directories
+ for all command line arguments at the beginning of the
+ unit load path, which means that all units files found
+ in those directories will be used in preference to the
+ unit files found in the standard locations, even if
+ not listed explicitly.</para>
+
<para>If no command is passed, <command>systemd-analyze
time</command> is implied.</para>
<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>--user</option></term>
- <listitem><para>Shows performance data
- of user sessions instead of the system
- manager.</para></listitem>
+ <listitem><para>Operates on the user
+ systemd instance.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--system</option></term>
- <listitem><para>Shows performance data
- of the system manager. This is the
- implied default.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>-H</option></term>
- <term><option>--host=</option></term>
-
- <listitem><para>Execute the operation
- remotely. Specify a hostname, or
- username and hostname separated by
- <literal>@</literal>, to connect
- to. This will use SSH to talk to the
- remote machine manager
- instance.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>-M</option></term>
- <term><option>--machine=</option></term>
-
- <listitem><para>Execute the operation on a
- local container. Specify a container
- name to connect to.</para></listitem>
+ <listitem><para>Operates on the system
+ systemd instance. This is the implied
+ default.</para></listitem>
</varlistentry>
<varlistentry>
</varlistentry>
<varlistentry>
- <term><option>--no-pager</option></term>
+ <term><option>--no-man</option></term>
- <listitem>
- <para>Do not pipe output into a pager.</para>
- </listitem>
+ <listitem><para>Do not invoke man to verify the existence
+ of man pages listen in <varname>Documentation=</varname>.
+ </para></listitem>
</varlistentry>
+
+ <xi:include href="user-system-options.xml" xpointer="host" />
+ <xi:include href="user-system-options.xml" xpointer="machine" />
+
+ <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>
<refsect1>
- <title>Examples</title>
+ <title>Examples for <command>dot</command></title>
- <para>This plots all dependencies of any unit whose
- name starts with <literal>avahi-daemon.</literal>:</para>
+ <example>
+ <title>Plots all dependencies of any unit whose
+ name starts with <literal>avahi-daemon</literal></title>
- <programlisting>$ systemd-analyze dot 'avahi-daemon.*' | dot -Tsvg > avahi.svg
-$ eog avahi.svg</programlisting>
+ <programlisting>$ systemd-analyze dot 'avahi-daemon.*' | dot -Tsvg > avahi.svg
+ $ eog avahi.svg</programlisting>
+ </example>
- <para>This plots the dependencies between all known target units:</para>
+ <example>
+ <title>Plots the dependencies between all known target units</title>
- <programlisting>systemd-analyze dot --to-pattern='*.target' --from-pattern='*.target' | dot -Tsvg > targets.svg
+
<programlisting>systemd-analyze dot --to-pattern='*.target' --from-pattern='*.target' | dot -Tsvg > targets.svg
$ eog targets.svg</programlisting>
+ </example>
+ </refsect1>
-
+ <refsect1>
+ <title>Examples for <command>verify</command></title>
+
+ <para>The following errors are currently detected:</para>
+ <itemizedlist>
+ <listitem><para>unknown sections and
+ directives, </para></listitem>
+
+ <listitem><para>missing dependencies which are
+ required to start the given unit,
+ </para></listitem>
+
+ <listitem><para>man pages listed in
+ <varname>Documentation=</varname> which are
+ not found in the system,</para></listitem>
+
+ <listitem><para>commands listed in
+ <varname>ExecStart=</varname> and similar
+ which are not found in the system or not
+ executable.</para></listitem>
+ </itemizedlist>
+
+ <example>
+ <title>Misspelt directives</title>
+
+ <programlisting>$ cat ./user.slice
+[Unit]
+WhatIsThis=11
+Documentation=man:nosuchfile(1)
+Requires=different.service
+
+[Service]
+Desription=x
+
+$ systemd-verify ./user.slice
+[./user.slice:9] Unknown lvalue 'WhatIsThis' in section 'Unit'
+[./user.slice:13] Unknown section 'Service'. Ignoring.
+Error: org.freedesktop.systemd1.LoadFailed:
+ Unit different.service failed to load:
+ No such file or directory.
+Failed to create user.slice/start: Invalid argument
+user.slice: man nosuchfile(1) command failed with code 16
+ </programlisting>
+ </example>
+
+ <example>
+ <title>Missing service units</title>
+
+ <programlisting>$ tail ./a.socket ./b.socket
+==> ./a.socket <==
+[Socket]
+ListenStream=100
+
+==> ./b.socket <==
+[Socket]
+ListenStream=100
+Accept=yes
+
+$ systemd-verify ./a.socket ./b.socket
+Service a.service not loaded, a.socket cannot be started.
+Service b@0.service not loaded, b.socket cannot be started.
+ </programlisting>
+ </example>
</refsect1>
<xi:include href="less-variables.xml" />
~ianmdlvl / elogind.git / blobdiff