man: bring systemctl man page and --help text into the same order

[elogind.git] / man / systemctl.xml

diff --git a/man/systemctl.xml b/man/systemctl.xml
index 8a4cff8833a578a7a8617919e5d37b1f38e3daf0..dd9fd995b3f45cc802722380208baf5a0c66df9c 100644 (file)
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0'?> <!--*-nxml-*-->
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->

 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 


@@ -151,9 +151,12 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
 
         <listitem>
           <para>Show reverse dependencies between units with
 
         <listitem>
           <para>Show reverse dependencies between units with

-          <command>list-dependencies</command>, i.e. units with
-          dependencies of type <varname>Wants=</varname> or
-          <varname>Requires=</varname> on the given unit.
+          <command>list-dependencies</command>, i.e. follow
+          dependencies of type <varname>WantedBy=</varname>,
+          <varname>RequiredBy=</varname>,
+          <varname>RequiredByOverrridable=</varname>,
+          <varname>PartOf=</varname>, <varname>BoundBy=</varname>,
+          instead of <varname>Wants=</varname> and similar.

           </para>
         </listitem>
       </varlistentry>
           </para>
         </listitem>
       </varlistentry>


@@ -164,10 +167,20 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
         <listitem>
           <para>With <command>list-dependencies</command>, show the
           units that are ordered before the specified unit. In other
         <listitem>
           <para>With <command>list-dependencies</command>, show the
           units that are ordered before the specified unit. In other

-          words, list the units that are in the <varname>After=</varname>
-          directive of the specified unit, have the specified unit in
-          their <varname>Before=</varname> directive, or are otherwise
-          implicit dependencies of the specified unit.</para>
+          words, recursively list units following the
+          <varname>After=</varname> dependency.</para>
+
+          <para>Note that any <varname>After=</varname> dependency is
+          automatically mirrored to create a
+          <varname>Before=</varname> dependency. Temporal dependencies
+          may be specified explicitly, but are also created implicitly
+          for units which are <varname>WantedBy=</varname> targets
+          (see
+          <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>),
+          and as a result of other directives (for example
+          <varname>RequiresMountsFor=</varname>). Both explicitly
+          and implicitly introduced dependencies are shown with
+          <command>list-dependencies</command>.</para>

         </listitem>
       </varlistentry>
 
         </listitem>
       </varlistentry>
 


@@ -177,10 +190,8 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
         <listitem>
           <para>With <command>list-dependencies</command>, show the
           units that are ordered after the specified unit. In other
         <listitem>
           <para>With <command>list-dependencies</command>, show the
           units that are ordered after the specified unit. In other

-          words, list the units that are in the <varname>Before=</varname>
-          directive of the specified unit, have the specified unit in
-          their <varname>After=</varname> directive, or otherwise depend
-          on the specified unit.</para>
+          words, recursively list units following the
+          <varname>Before=</varname> dependency.</para>

         </listitem>
       </varlistentry>
 
         </listitem>
       </varlistentry>
 


@@ -375,7 +386,6 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
           querying the user for authentication for privileged
           operations.</para>
         </listitem>
           querying the user for authentication for privileged
           operations.</para>
         </listitem>

-

       </varlistentry>
 
       <varlistentry>
       </varlistentry>
 
       <varlistentry>


@@ -471,7 +481,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
 
         <listitem>
           <para>When used with <command>enable</command>,
 
         <listitem>
           <para>When used with <command>enable</command>,

-          <command>disable</command>,
+          <command>disable</command>, <command>edit</command>,

           (and related commands), make changes only temporarily, so
           that they are lost on the next reboot. This will have the
           effect that changes are not made in subdirectories of
           (and related commands), make changes only temporarily, so
           that they are lost on the next reboot. This will have the
           effect that changes are not made in subdirectories of


@@ -586,7 +596,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             </para>
 
             <para>See also the options <option>--show-types</option>,
             </para>
 
             <para>See also the options <option>--show-types</option>,

-            <option>--all</option>, and <option>--failed</option>.</para>
+            <option>--all</option>, and <option>--state=</option>.</para>

           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 


@@ -600,7 +610,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             </para>
 
             <para>See also the options <option>--all</option> and
             </para>
 
             <para>See also the options <option>--all</option> and

-            <option>--failed</option>.</para>
+            <option>--state=</option>.</para>

           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 


@@ -694,7 +704,9 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
 
           <listitem>
             <para>Start the unit specified on the command line and its
 
           <listitem>
             <para>Start the unit specified on the command line and its

-            dependencies and stop all others.</para>
+            dependencies and stop all others. If a unit name with no
+            extension is given, an extension of
+            <literal>.target</literal> will be assumed.</para>

 
             <para>This is similar to changing the runlevel in a
             traditional init system. The <command>isolate</command>
 
             <para>This is similar to changing the runlevel in a
             traditional init system. The <command>isolate</command>


@@ -848,15 +860,30 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
         </varlistentry>
 
         <varlistentry>
         </varlistentry>
 
         <varlistentry>

-          <term><command>list-dependencies <replaceable>NAME</replaceable></command></term>
+          <term>
+            <command>list-dependencies</command>
+            <optional><replaceable>NAME</replaceable></optional>
+          </term>

 
           <listitem>
 
           <listitem>

-            <para>Shows required and wanted units of the specified
-            unit. If no unit is specified,
-            <filename>default.target</filename> is implied. Target units
-            are recursively expanded.  When <option>--all</option> is
-            passed, all other units are recursively expanded as
-            well.</para>
+            <para>Shows units required and wanted by the specified
+            unit. This recursively lists units following the
+            <varname>Requires=</varname>,
+            <varname>RequiresOverridable=</varname>,
+            <varname>Requisite=</varname>,
+            <varname>RequisiteOverridable=</varname>,
+            <varname>Wants=</varname>, <varname>BindsTo=</varname>
+            dependencies. If no unit is specified,
+            <filename>default.target</filename> is implied.</para>
+
+            <para>By default, only target units are recursively
+            expanded. When <option>--all</option> is passed, all other
+            units are recursively expanded as well.</para>
+
+            <para>Options <option>--reverse</option>,
+            <option>--after</option>, <option>--before</option>
+            may be used to change what types of dependencies
+            are shown.</para>

           </listitem>
         </varlistentry>
       </variablelist>
           </listitem>
         </varlistentry>
       </variablelist>


@@ -964,6 +991,56 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 

+        <varlistentry>
+          <term><command>reenable <replaceable>NAME</replaceable>...</command></term>
+
+          <listitem>
+            <para>Reenable one or more unit files, as specified on the
+            command line. This is a combination of
+            <command>disable</command> and <command>enable</command> and
+            is useful to reset the symlinks a unit is enabled with to
+            the defaults configured in the <literal>[Install]</literal>
+            section of the unit file.</para>
+          </listitem>
+        </varlistentry>
+
+        <varlistentry>
+          <term><command>preset <replaceable>NAME</replaceable>...</command></term>
+
+          <listitem>
+            <para>Reset one or more unit files, as specified on the
+            command line, to the defaults configured in the preset
+            policy files. This has the same effect as
+            <command>disable</command> or <command>enable</command>,
+            depending how the unit is listed in the preset files.</para>
+
+            <para>Use <option>--preset-mode=</option> to control
+            whether units shall be enabled and disabled, or only
+            enabled, or only disabled.</para>
+
+            <para>For more information on the preset policy format,
+            see
+            <citerefentry><refentrytitle>systemd.preset</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+            For more information on the concept of presets, please
+            consult the <ulink
+            url="http://freedesktop.org/wiki/Software/systemd/Preset">Preset</ulink>
+            document.</para>
+          </listitem>
+        </varlistentry>
+
+        <varlistentry>
+          <term><command>preset-all</command></term>
+
+          <listitem>
+            <para>Resets all installed unit files to the defaults
+            configured in the preset policy file (see above).</para>
+
+            <para>Use <option>--preset-mode=</option> to control
+            whether units shall be enabled and disabled, or only
+            enabled, or only disabled.</para>
+          </listitem>
+        </varlistentry>
+

         <varlistentry>
           <term><command>is-enabled <replaceable>NAME</replaceable>...</command></term>
 
         <varlistentry>
           <term><command>is-enabled <replaceable>NAME</replaceable>...</command></term>
 


@@ -991,7 +1068,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
                 <tbody>
                   <row>
                     <entry><literal>enabled</literal></entry>
                 <tbody>
                   <row>
                     <entry><literal>enabled</literal></entry>

-                    <entry morerows='1'>Enabled through a symlink in <filename>.wants</filename> directory (permanently or just in <filename>/run</filename>)</entry>
+                    <entry morerows='1'>Enabled through a symlink in <filename>.wants</filename> directory (permanently or just in <filename>/run</filename>).</entry>

                     <entry morerows='1'>0</entry>
                   </row>
                   <row>
                     <entry morerows='1'>0</entry>
                   </row>
                   <row>


@@ -999,7 +1076,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
                   </row>
                   <row>
                     <entry><literal>linked</literal></entry>
                   </row>
                   <row>
                     <entry><literal>linked</literal></entry>

-                    <entry morerows='1'>Made available through a symlink to the unit file (permanently or just in <filename>/run</filename>)</entry>
+                    <entry morerows='1'>Made available through a symlink to the unit file (permanently or just in <filename>/run</filename>).</entry>

                     <entry morerows='1'>1</entry>
                   </row>
                   <row>
                     <entry morerows='1'>1</entry>
                   </row>
                   <row>


@@ -1007,7 +1084,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
                   </row>
                   <row>
                     <entry><literal>masked</literal></entry>
                   </row>
                   <row>
                     <entry><literal>masked</literal></entry>

-                    <entry morerows='1'>Disabled entirely (permanently or just in <filename>/run</filename>)</entry>
+                    <entry morerows='1'>Disabled entirely (permanently or just in <filename>/run</filename>).</entry>

                     <entry morerows='1'>1</entry>
                   </row>
                   <row>
                     <entry morerows='1'>1</entry>
                   </row>
                   <row>


@@ -1015,12 +1092,17 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
                   </row>
                   <row>
                     <entry><literal>static</literal></entry>
                   </row>
                   <row>
                     <entry><literal>static</literal></entry>

-                    <entry>Unit is not enabled, but has no provisions for enabling in [Install] section</entry>
+                    <entry>Unit file is not enabled, and has no provisions for enabling in the <literal>[Install]</literal> section.</entry>
+                    <entry>0</entry>
+                  </row>
+                  <row>
+                    <entry><literal>indirect</literal></entry>
+                    <entry>Unit file itself is not enabled, but it has a non-empty <varname>Also=</varname> setting in the <literal>[Install]</literal> section, listing other unit files that might be enabled.</entry>

                     <entry>0</entry>
                   </row>
                   <row>
                     <entry><literal>disabled</literal></entry>
                     <entry>0</entry>
                   </row>
                   <row>
                     <entry><literal>disabled</literal></entry>

-                    <entry>Unit is not enabled</entry>
+                    <entry>Unit file is not enabled.</entry>

                     <entry>1</entry>
                   </row>
                 </tbody>
                     <entry>1</entry>
                   </row>
                 </tbody>


@@ -1030,56 +1112,6 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 

-        <varlistentry>
-          <term><command>reenable <replaceable>NAME</replaceable>...</command></term>
-
-          <listitem>
-            <para>Reenable one or more unit files, as specified on the
-            command line. This is a combination of
-            <command>disable</command> and <command>enable</command> and
-            is useful to reset the symlinks a unit is enabled with to
-            the defaults configured in the <literal>[Install]</literal>
-            section of the unit file.</para>
-          </listitem>
-        </varlistentry>
-
-        <varlistentry>
-          <term><command>preset <replaceable>NAME</replaceable>...</command></term>
-
-          <listitem>
-            <para>Reset one or more unit files, as specified on the
-            command line, to the defaults configured in the preset
-            policy files. This has the same effect as
-            <command>disable</command> or <command>enable</command>,
-            depending how the unit is listed in the preset files.</para>
-
-            <para>Use <option>--preset-mode=</option> to control
-            whether units shall be enabled and disabled, or only
-            enabled, or only disabled.</para>
-
-            <para>For more information on the preset policy format,
-            see
-            <citerefentry><refentrytitle>systemd.preset</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
-            For more information on the concept of presets, please
-            consult the <ulink
-            url="http://freedesktop.org/wiki/Software/systemd/Preset">Preset</ulink>
-            document.</para>
-          </listitem>
-        </varlistentry>
-
-        <varlistentry>
-          <term><command>preset-all</command></term>
-
-          <listitem>
-            <para>Resets all installed unit files to the defaults
-            configured in the preset policy file (see above).</para>
-
-            <para>Use <option>--preset-mode=</option> to control
-            whether units shall be enabled and disabled, or only
-            enabled, or only disabled.</para>
-          </listitem>
-        </varlistentry>
-

         <varlistentry>
           <term><command>mask <replaceable>NAME</replaceable>...</command></term>
 
         <varlistentry>
           <term><command>mask <replaceable>NAME</replaceable>...</command></term>
 


@@ -1106,6 +1138,20 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 

+        <varlistentry>
+          <term><command>link <replaceable>FILENAME</replaceable>...</command></term>
+
+          <listitem>
+            <para>Link a unit file that is not in the unit file search
+            paths into the unit file search path. This requires an
+            absolute path to a unit file. The effect of this can be
+            undone with <command>disable</command>. The effect of this
+            command is that a unit file is available for
+            <command>start</command> and other commands although it
+            is not installed directly in the unit search path.</para>
+          </listitem>
+        </varlistentry>
+

         <varlistentry>
           <term><command>add-wants <replaceable>TARGET</replaceable>
           <replaceable>NAME</replaceable>...</command></term>
         <varlistentry>
           <term><command>add-wants <replaceable>TARGET</replaceable>
           <replaceable>NAME</replaceable>...</command></term>


@@ -1126,16 +1172,39 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
         </varlistentry>
 
         <varlistentry>
         </varlistentry>
 
         <varlistentry>

-          <term><command>link <replaceable>FILENAME</replaceable>...</command></term>
+          <term><command>edit <replaceable>NAME</replaceable>...</command></term>

 
           <listitem>
 
           <listitem>

-            <para>Link a unit file that is not in the unit file search
-            paths into the unit file search path. This requires an
-            absolute path to a unit file. The effect of this can be
-            undone with <command>disable</command>. The effect of this
-            command is that a unit file is available for
-            <command>start</command> and other commands although it
-            is not installed directly in the unit search path.</para>
+            <para>Edit a drop-in snippet or a whole replacement file if
+            <option>--full</option> is specified, to extend or override the
+            specified unit.</para>
+
+            <para>Depending on whether <option>--system</option> (the default),
+            <option>--user</option>, or <option>--global</option> is specified,
+            this creates a drop-in file for each unit either for the system,
+            for the calling user or for all futures logins of all users. Then,
+            the editor (see the "Environment" section below) is invoked on
+            temporary files which will be written to the real location if the
+            editor exits successfully.</para>
+
+            <para>If <option>--full</option> is specified, this will copy the
+            original units instead of creating drop-in files.</para>
+
+            <para>If <option>--runtime</option> is specified, the changes will
+            be made temporarily in <filename>/run</filename> and they will be
+            lost on the next reboot.</para>
+
+            <para>If the temporary file is empty upon exit the modification of
+            the related unit is canceled</para>
+
+            <para>After the units have been edited, systemd configuration is
+            reloaded (in a way that is equivalent to <command>daemon-reload</command>).
+            </para>
+
+            <para>Note that this command cannot be used to remotely edit units
+            and that you cannot temporarily edit units which are in
+            <filename>/etc</filename> since they take precedence over
+            <filename>/run</filename>.</para>

           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 


@@ -1143,8 +1212,9 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           <term><command>get-default</command></term>
 
           <listitem>
           <term><command>get-default</command></term>
 
           <listitem>

-            <para>Get the default target specified
-            via <filename>default.target</filename> link.</para>
+            <para>Return the default target to boot into. This returns
+            the target unit name <filename>default.target</filename>
+            is aliased (symlinked) to.</para>

           </listitem>
         </varlistentry>
 
           </listitem>
         </varlistentry>
 


@@ -1152,10 +1222,12 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           <term><command>set-default <replaceable>NAME</replaceable></command></term>
 
           <listitem>
           <term><command>set-default <replaceable>NAME</replaceable></command></term>
 
           <listitem>

-            <para>Set the default target to boot into. Command links
-            <filename>default.target</filename> to the given unit.</para>
+            <para>Set the default target to boot into. This sets
+            (symlinks) the <filename>default.target</filename> alias
+            to the given target unit.</para>

           </listitem>
         </varlistentry>
           </listitem>
         </varlistentry>

+

       </variablelist>
     </refsect2>
 
       </variablelist>
     </refsect2>
 


@@ -1477,6 +1549,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             <quote>firmware over the air</quote> update.</para>
           </listitem>
         </varlistentry>
             <quote>firmware over the air</quote> update.</para>
           </listitem>
         </varlistentry>

+

         <varlistentry>
           <term><command>kexec</command></term>
 
         <varlistentry>
           <term><command>kexec</command></term>
 


@@ -1490,6 +1563,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             immediately followed by the reboot.</para>
           </listitem>
         </varlistentry>
             immediately followed by the reboot.</para>
           </listitem>
         </varlistentry>

+

         <varlistentry>
           <term><command>exit</command></term>
 
         <varlistentry>
           <term><command>exit</command></term>
 


@@ -1499,8 +1573,29 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             with the <option>--user</option> option) and will fail
             otherwise.</para>
           </listitem>
             with the <option>--user</option> option) and will fail
             otherwise.</para>
           </listitem>

+        </varlistentry>
+
+        <varlistentry>
+          <term><command>switch-root <replaceable>ROOT</replaceable> <optional><replaceable>INIT</replaceable></optional></command></term>

 
 

+          <listitem>
+            <para>Switches to a different root directory and executes a
+            new system manager process below it. This is intended for
+            usage in initial RAM disks ("initrd"), and will transition
+            from the initrd's system manager process (a.k.a "init"
+            process) to the main system manager process. This call takes two
+            arguments: the directory that is to become the new root directory, and
+            the path to the new system manager binary below it to
+            execute as PID 1. If the latter is omitted or the empty
+            string, a systemd binary will automatically be searched for
+            and used as init. If the system manager path is omitted or
+            equal to the empty string, the state of the initrd's system
+            manager process is passed to the main system manager, which
+            allows later introspection of the state of the services
+            involved in the initrd boot.</para>
+          </listitem>

         </varlistentry>
         </varlistentry>

+

         <varlistentry>
           <term><command>suspend</command></term>
 
         <varlistentry>
           <term><command>suspend</command></term>
 


@@ -1510,6 +1605,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             </para>
           </listitem>
         </varlistentry>
             </para>
           </listitem>
         </varlistentry>

+

         <varlistentry>
           <term><command>hibernate</command></term>
 
         <varlistentry>
           <term><command>hibernate</command></term>
 


@@ -1519,6 +1615,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             </para>
           </listitem>
         </varlistentry>
             </para>
           </listitem>
         </varlistentry>

+

         <varlistentry>
           <term><command>hybrid-sleep</command></term>
 
         <varlistentry>
           <term><command>hybrid-sleep</command></term>
 


@@ -1528,26 +1625,6 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             <filename>hybrid-sleep.target</filename> target.</para>
           </listitem>
         </varlistentry>
             <filename>hybrid-sleep.target</filename> target.</para>
           </listitem>
         </varlistentry>

-        <varlistentry>
-          <term><command>switch-root <replaceable>ROOT</replaceable> <optional><replaceable>INIT</replaceable></optional></command></term>
-
-          <listitem>
-            <para>Switches to a different root directory and executes a
-            new system manager process below it. This is intended for
-            usage in initial RAM disks ("initrd"), and will transition
-            from the initrd's system manager process (a.k.a "init"
-            process) to the main system manager process. This call takes two
-            arguments: the directory that is to become the new root directory, and
-            the path to the new system manager binary below it to
-            execute as PID 1. If the latter is omitted or the empty
-            string, a systemd binary will automatically be searched for
-            and used as init. If the system manager path is omitted or
-            equal to the empty string, the state of the initrd's system
-            manager process is passed to the main system manager, which
-            allows later introspection of the state of the services
-            involved in the initrd boot.</para>
-          </listitem>
-        </varlistentry>

       </variablelist>
     </refsect2>
 
       </variablelist>
     </refsect2>
 


@@ -1566,9 +1643,9 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
       <programlisting># systemctl start sshd</programlisting> and
       <programlisting># systemctl start sshd.service</programlisting>
       are equivalent, as are
       <programlisting># systemctl start sshd</programlisting> and
       <programlisting># systemctl start sshd.service</programlisting>
       are equivalent, as are

-      <programlisting># systemctl isolate snapshot-11</programlisting>
+      <programlisting># systemctl isolate default</programlisting>

       and
       and

-      <programlisting># systemctl isolate snapshot-11.snapshot</programlisting>
+      <programlisting># systemctl isolate default.target</programlisting>

       Note that (absolute) paths to device nodes are automatically
       converted to device unit names, and other (absolute) paths to
       mount unit names.
       Note that (absolute) paths to device nodes are automatically
       converted to device unit names, and other (absolute) paths to
       mount unit names.


@@ -1614,7 +1691,28 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
     code otherwise.</para>
   </refsect1>
 
     code otherwise.</para>
   </refsect1>
 

-  <xi:include href="less-variables.xml" />
+  <refsect1>
+    <title>Environment</title>
+
+    <variablelist class='environment-variables'>
+      <varlistentry>
+        <term><varname>$SYSTEMD_EDITOR</varname></term>
+
+        <listitem><para>Editor to use when editing units; overrides
+        <varname>$EDITOR</varname> and <varname>$VISUAL</varname>. If neither
+        <varname>$SYSTEMD_EDITOR</varname> nor <varname>$EDITOR</varname> nor
+        <varname>$VISUAL</varname> are present or if it is set to an empty
+        string or if their execution failed, systemctl will try to execute well
+        known editors in this order:
+        <citerefentry><refentrytitle>nano</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+        <citerefentry><refentrytitle>vim</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+        <citerefentry><refentrytitle>vi</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
+        </para></listitem>
+      </varlistentry>
+    </variablelist>
+    <xi:include href="less-variables.xml" xpointer="pager"/>
+    <xi:include href="less-variables.xml" xpointer="less"/>
+  </refsect1>

 
   <refsect1>
     <title>See Also</title>
 
   <refsect1>
     <title>See Also</title>


@@ -1627,7 +1725,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
       <citerefentry><refentrytitle>systemd.resource-management</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
       <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
       <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
       <citerefentry><refentrytitle>systemd.resource-management</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
       <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
       <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>,

-      <citerefentry><refentrytitle>systemd.preset</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+      <citerefentry><refentrytitle>systemd.preset</refentrytitle><manvolnum>5</manvolnum></citerefentry>,

       <citerefentry><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry>
     </para>
   </refsect1>
       <citerefentry><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry>
     </para>
   </refsect1>