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man: document the new -o cat feature

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Lennart Poettering 2020-04-30 14:53:14 +02:00
parent 4d5d1bba73
commit e0e3d38726
1 changed files with 9 additions and 7 deletions
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16
man/journalctl.xml
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@ -374,9 +374,10 @@
<option>cat</option>
</term>
<listitem>
<para>generates a very terse output, only showing the
actual message of each journal entry with no metadata,
not even a timestamp.</para>
<para>generates a very terse output, only showing the actual message of each journal entry
with no metadata, not even a timestamp. If combined with the
<option>--output-fields=</option> option will output the listed fields for each log record,
instead of the message.</para>
</listitem>
</varlistentry>
@ -398,10 +399,11 @@
<varlistentry>
<term><option>--output-fields=</option></term>
<listitem><para>A comma separated list of the fields which should be included in the output. This has an
effect only for the output modes which would normally show all fields (<option>verbose</option>,
<option>export</option>, <option>json</option>, <option>json-pretty</option>, <option>json-sse</option> and
<option>json-seq</option>). The <literal>__CURSOR</literal>, <literal>__REALTIME_TIMESTAMP</literal>,
<listitem><para>A comma separated list of the fields which should be included in the output. This has
an effect only for the output modes which would normally show all fields (<option>verbose</option>,
<option>export</option>, <option>json</option>, <option>json-pretty</option>,
<option>json-sse</option> and <option>json-seq</option>), as well as on <option>cat</option>. For the
former, the <literal>__CURSOR</literal>, <literal>__REALTIME_TIMESTAMP</literal>,
<literal>__MONOTONIC_TIMESTAMP</literal>, and <literal>_BOOT_ID</literal> fields are always
printed.</para></listitem>
</varlistentry>