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man: beef up description of systemctl list-units

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Fixes https://bugs.freedesktop.org/show_bug.cgi?id=88135.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2018-03-09 10:20:52 +01:00
parent 8750ac0238
commit 6fdbb3c821
1 changed files with 36 additions and 0 deletions
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man/systemctl.xml
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@ -692,6 +692,42 @@
that are shown are additionally filtered by <option>--type=</option> and <option>--state=</option> if those
options are specified.</para>
<para>Produces output similar to
<programlisting> UNIT LOAD ACTIVE SUB DESCRIPTION
sys-module-fuse.device loaded active plugged /sys/module/fuse
-.mount loaded active mounted Root Mount
boot-efi.mount loaded active mounted /boot/efi
systemd-journald.service loaded active running Journal Service
systemd-logind.service loaded active running Login Service
● user@1000.service loaded active running User Manager for UID 1000
...
systemd-tmpfiles-clean.timer loaded active waiting Daily Cleanup of Temporary Directories
LOAD = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB = The low-level unit activation state, values depend on unit type.
123 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.
</programlisting>
The header and the last unit of a given type are underlined if the
terminal supports that. A colored dot is shown next to services which
were masked, not found, or otherwise failed.</para>
<para>The LOAD column shows the load state, one of
<constant>loaded</constant>, <constant>not-found</constant>,
<constant>stub</constant>, <constant>error</constant>,
<constant>merged</constant>, <constant>masked</constant>. The ACTIVE
columns shows the general unit state, one of <constant>active</constant>,
<constant>reloading</constant>, <constant>inactive</constant>,
<constant>failed</constant>, <constant>activating</constant>,
<constant>deactivating</constant>. The SUB column shows the
unit-type-specific detailed state of the unit, possible values vary by
unit type. The list of possible LOAD, ACTIVE, and SUB states is not
constant and new systemd releases may both add and remove values.
<programlisting>systemctl --state=help</programlisting> command maybe be
used to display the current set of possible values.</para>
<para>This is the default command.</para>
</listitem>
</varlistentry>