chiark / gitweb /
manager: connect SIGRTMIN+24 to terminating --user instances
[elogind.git] / man / journalctl.xml
index 9800cf30ed260ecfd8b4650f06f6a8a23e7f2d2c..a533f4d0ea1f7fe44a03eb18e7a64a0f1d640cc6 100644 (file)
@@ -62,7 +62,7 @@
                 journal as written by
                 <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
 
                 journal as written by
                 <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
 
-                <para>If called without parameter will show the full
+                <para>If called without parameter it will show the full
                 contents of the journal, starting with the oldest
                 entry collected.</para>
 
                 contents of the journal, starting with the oldest
                 entry collected.</para>
 
                                 <term><option>--follow</option></term>
                                 <term><option>-f</option></term>
 
                                 <term><option>--follow</option></term>
                                 <term><option>-f</option></term>
 
-                                <listitem><para>Show only most recent
+                                <listitem><para>Show only the most recent
                                 journal entries, and continuously print
                                 new entries as they are appended to
                                 the journal.</para></listitem>
                                 journal entries, and continuously print
                                 new entries as they are appended to
                                 the journal.</para></listitem>
 
                                 <listitem><para>Controls the number of
                                 journal lines to show, counting from
 
                                 <listitem><para>Controls the number of
                                 journal lines to show, counting from
-                                the most recent ones. Takes a positive
-                                integer argument. In follow mode
-                                defaults to 10, otherwise is unset
-                                thus not limiting how many lines are
-                                shown.</para></listitem>
+                                the most recent ones. The argument is
+                                optional, and if specified is a
+                                positive integer. If not specified and
+                                in follow mode defaults to 10. If this
+                                option is not passed and follow mode
+                                is not enabled, how many lines are
+                                shown is not
+                                limited.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
                                 <literal>export</literal>,
                                 <literal>json</literal>,
                                 <literal>json-pretty</literal>,
                                 <literal>export</literal>,
                                 <literal>json</literal>,
                                 <literal>json-pretty</literal>,
+                                <literal>json-sse</literal>,
                                 <literal>cat</literal>. <literal>short</literal>
                                 is the default and generates an output
                                 that is mostly identical to the
                                 <literal>cat</literal>. <literal>short</literal>
                                 is the default and generates an output
                                 that is mostly identical to the
                                 structures, but formats them in
                                 multiple lines in order to make them
                                 more readable for
                                 structures, but formats them in
                                 multiple lines in order to make them
                                 more readable for
-                                humans. <literal>cat</literal>
+                                humans. <literal>json-sse</literal>
+                                also formats entries as JSON data
+                                structures, but wraps them in a format
+                                suitable for <ulink
+                                url="https://developer.mozilla.org/en-US/docs/Server-sent_events/Using_server-sent_events">Server-Sent
+                                Events</ulink>. <literal>cat</literal>
                                 generates a very terse output only
                                 showing the actual message of each
                                 journal entry with no meta data, not
                                 generates a very terse output only
                                 showing the actual message of each
                                 journal entry with no meta data, not
                                 <term><option>-b</option></term>
 
                                 <listitem><para>Show data only from
                                 <term><option>-b</option></term>
 
                                 <listitem><para>Show data only from
-                                current boot.</para></listitem>
+                                current boot. This will add a match
+                                for <literal>_BOOT_ID=</literal> for
+                                the current boot ID of the
+                                kernel.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
-                                <term><option>--directory=</option></term>
-                                <term><option>-D</option></term>
-
-                                <listitem><para>Takes an absolute
-                                directory path as argument. If
-                                specified will operate on the
-                                specified journal directory instead of
-                                the default runtime and system journal
-                                paths.</para></listitem>
+                                <term><option>--unit=</option></term>
+                                <term><option>-u</option></term>
+
+                                <listitem><para>Show data only of the
+                                specified unit. This will add a match
+                                for <literal>_SYSTEMD_UNIT=</literal>
+                                for the specified
+                                unit.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
                                 <literal>info</literal> (6),
                                 <literal>debug</literal> (7). If a
                                 single log level is specified all
                                 <literal>info</literal> (6),
                                 <literal>debug</literal> (7). If a
                                 single log level is specified all
-                                messages with this log levels or a
+                                messages with this log level or a
                                 lower (hence more important) log level
                                 are shown. If a range is specified all
                                 messages within the range are shown,
                                 including both the start and the end
                                 lower (hence more important) log level
                                 are shown. If a range is specified all
                                 messages within the range are shown,
                                 including both the start and the end
-                                value of the range.</para></listitem>
+                                value of the range. This will add
+                                <literal>PRIORITY=</literal> matches
+                                for the specified
+                                priorities.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><option>--cursor=</option></term>
+                                <term><option>-c</option></term>
+
+                                <listitem><para>Start showing entries
+                                from the location in the journal
+                                specified by the passed
+                                cursor.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><option>--since=</option></term>
+                                <term><option>--until=</option></term>
+
+                                <listitem><para>Start showing entries
+                                on or newer than the specified date,
+                                or on or older than the specified
+                                date, respectively. Date specifications should be of
+                                the format "2012-10-30 18:17:16". If
+                                the time part is omitted, 00:00:00 is
+                                assumed. If only the seconds component
+                                is omitted, :00 is assumed. If the
+                                date component is ommitted, the
+                                current day is assumed. Alternatively
+                                the strings
+                                <literal>yesterday</literal>,
+                                <literal>today</literal>,
+                                <literal>tomorrow</literal> are
+                                understood, which refer to 00:00:00 of
+                                the day before the current day, the
+                                current day, or the day after the
+                                current day, respectively. <literal>now</literal>
+                                refers to the current time. Finally,
+                                relative times may be specified,
+                                prefixed with <literal>-</literal> or
+                                <literal>+</literal>, referring to
+                                times before or after the current
+                                time, respectively.</para></listitem>
+                        </varlistentry>
+
+                        <varlistentry>
+                                <term><option>--directory=</option></term>
+                                <term><option>-D</option></term>
+
+                                <listitem><para>Takes an absolute
+                                directory path as argument. If
+                                specified journalctl will operate on the
+                                specified journal directory instead of
+                                the default runtime and system journal
+                                paths.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
                         </varlistentry>
 
                         <varlistentry>
 
                                 <listitem><para>Instead of showing
                                 journal contents show internal header
 
                                 <listitem><para>Instead of showing
                                 journal contents show internal header
-                                information of the journal fiels
+                                information of the journal fields
                                 accessed.</para></listitem>
                         </varlistentry>
 
                                 accessed.</para></listitem>
                         </varlistentry>
 
                 <programlisting>journalctl _SYSTEMD_UNIT=avahi-daemon.service _SYSTEMD_UNIT=dbus.service</programlisting>
 
                 <para>If the separator "<literal>+</literal>" is used
                 <programlisting>journalctl _SYSTEMD_UNIT=avahi-daemon.service _SYSTEMD_UNIT=dbus.service</programlisting>
 
                 <para>If the separator "<literal>+</literal>" is used
-                two expression may be combined in a logical OR. The
+                two expressions may be combined in a logical OR. The
                 following will show all messages from the Avahi
                 service process with the PID 28097 plus all messages
                 from the D-Bus service (from any of its
                 following will show all messages from the Avahi
                 service process with the PID 28097 plus all messages
                 from the D-Bus service (from any of its