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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">
+
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+-->
+
+<refentry id="systemd-cgls"
+    xmlns:xi="http://www.w3.org/2001/XInclude">
+
+  <refentryinfo>
+    <title>systemd-cgls</title>
+    <productname>systemd</productname>
+  </refentryinfo>
+
+  <refmeta>
+    <refentrytitle>systemd-cgls</refentrytitle>
+    <manvolnum>1</manvolnum>
+  </refmeta>
+
+  <refnamediv>
+    <refname>systemd-cgls</refname>
+    <refpurpose>Recursively show control group contents</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <cmdsynopsis>
+      <command>systemd-cgls</command>
+      <arg choice="opt" rep="repeat">OPTIONS</arg>
+      <arg choice="opt" rep="repeat">CGROUP</arg>
+    </cmdsynopsis>
+    <cmdsynopsis>
+      <command>systemd-cgls</command>
+      <arg choice="opt" rep="repeat">OPTIONS</arg>
+      <arg choice="plain"><option>--unit</option>|<option>--user-unit</option></arg>
+      <arg choice="opt" rep="repeat">UNIT</arg>
+    </cmdsynopsis>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para><command>systemd-cgls</command> recursively shows the
+    contents of the selected Linux control group hierarchy in a tree.
+    If arguments are specified, shows all member processes of the
+    specified control groups plus all their subgroups and their
+    members. The control groups may either be specified by their full
+    file paths or are assumed in the systemd control group hierarchy.
+    If no argument is specified and the current working directory is
+    beneath the control group mount point
+    <filename>/sys/fs/cgroup</filename>, shows the contents of the
+    control group the working directory refers to. Otherwise, the full
+    systemd control group hierarchy is shown.</para>
+
+    <para>By default, empty control groups are not shown.</para>
+  </refsect1>
+
+  <refsect1>
+    <title>Options</title>
+
+    <para>The following options are understood:</para>
+
+    <variablelist>
+      <varlistentry>
+        <term><option>--all</option></term>
+
+        <listitem><para>Do not hide empty control groups in the
+        output.</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-l</option></term>
+        <term><option>--full</option></term>
+
+        <listitem><para>Do not ellipsize process tree members.</para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-u</option></term>
+        <term><option>--unit</option></term>
+
+        <listitem><para>Show cgroup subtrees for the specified units.</para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>--user-unit</option></term>
+
+        <listitem><para>Show cgroup subtrees for the specified user units.</para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-k</option></term>
+
+        <listitem><para>Include kernel threads in output.
+        </para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><option>-M <replaceable>MACHINE</replaceable></option></term>
+        <term><option>--machine=<replaceable>MACHINE</replaceable></option></term>
+
+        <listitem><para>Limit control groups shown to the part
+        corresponding to the container
+        <replaceable>MACHINE</replaceable>.</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>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>,
+      <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd-cgtop</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry project='man-pages'><refentrytitle>ps</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+    </para>
+  </refsect1>
+
+</refentry>