<!--
SPDX-License-Identifier: LGPL-2.1+
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- This file is part of systemd.
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- Copyright 2012 Lennart Poettering
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<refentry id="journalctl"
<refentryinfo>
<title>journalctl</title>
<productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
</refentryinfo>
<refmeta>
<programlisting>journalctl _SYSTEMD_UNIT=avahi-daemon.service _PID=28097 + _SYSTEMD_UNIT=dbus.service</programlisting>
- <para>To show all fields emited <emphasis>by</emphasis> a unit and <emphasis>about</emphasis>
+ <para>To show all fields emitted <emphasis>by</emphasis> a unit and <emphasis>about</emphasis>
the unit, option <option>-u</option>/<option>--unit=</option> should be used.
<command>journalctl -u <replaceable>name</replaceable></command>
expands to a complex filter similar to