<refsynopsisdiv>
<cmdsynopsis>
- <command>journalctl <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt" rep="repeat">MATCHES</arg></command>
+ <command>journalctl</command>
+ <arg choice="opt" rep="repeat">OPTIONS</arg>
+ <arg choice="opt" rep="repeat">MATCHES</arg>
</cmdsynopsis>
</refsynopsisdiv>
<listitem><para>Immediately jump to
the end of the journal inside the
- implied pager tool. Very useful in
- combination with the
- <option>-b</option> option. Note that
- this is only supported for the
+ implied pager tool. This implies
+ <option>-n1000</option> to guarantee
+ that the pager won't buffer logs of
+ unbounded size. This may be overridden
+ with an explicit <option>-n</option>
+ with some other numeric value on the
+ command line. Note that this option is
+ only supported for the
<citerefentry><refentrytitle>less</refentrytitle><manvolnum>1</manvolnum></citerefentry>
pager.</para></listitem>
</varlistentry>
<term><option>-u</option></term>
<term><option>--unit=</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>
+ <listitem><para>Show messages for the
+ specified systemd unit. This will add
+ a match for messages from the unit
+ (<literal>_SYSTEMD_UNIT=</literal>)
+ and additional matches for messages
+ from systemd and messages about
+ coredumps for the specified unit.
+ </para></listitem>
</varlistentry>
<varlistentry>
<term><option>--user-unit=</option></term>
- <listitem><para>Show data only of the
+ <listitem><para>Show messages for the
specified user session unit. This will
- add a match for
- <literal>_SYSTEMD_USER_UNIT=</literal>
- for the specified
- unit.</para></listitem>
+ add a match for messages from the unit
+ (<literal>_SYSTEMD_USER_UNIT=</literal>
+ and <literal>_UID=</literal>) and
+ additional matches for messages from
+ session systemd and messages about
+ coredumps for the specified unit.
+ </para></listitem>
</varlistentry>
<varlistentry>
<term><option>-D</option></term>
<term><option>--directory=</option></term>
- <listitem><para>Takes an absolute
+ <listitem><para>Takes a
directory path as argument. If
specified journalctl will operate on the
specified journal directory instead of
paths.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><option>--root=<replaceable>ROOT</replaceable></option></term>
+
+ <listitem><para>Takes a directory path
+ as argument. If specified journalctl
+ will operate on catalog file hierarchy
+ underneath the specified directory
+ instead of the root directory
+ (e.g. <option>--update-catalog</option>
+ will create
+ <filename><replaceable>ROOT</replaceable>/var/lib/systemd/catalog/database</filename>).
+ </para></listitem>
+ </varlistentry>
+
<varlistentry>
<term><option>--new-id128</option></term>
</varlistentry>
<varlistentry>
- <term><option>--list-catalog</option></term>
+ <term><option>--list-catalog
+ <optional><replaceable>ID128...</replaceable></optional>
+ </option></term>
<listitem><para>List the contents of
the message catalog, as table of
message IDs plus their short
- description strings.</para></listitem>
+ description strings.</para>
+
+ <para>If any
+ <replaceable>ID128</replaceable>s are
+ specified, only those entries are shown.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--dump-catalog
+ <optional><replaceable>ID128...</replaceable></optional>
+ </option></term>
+
+ <listitem><para>Show the contents of
+ the message catalog, with entries
+ separated by a line consisting of two
+ dashes and the id (the format is the
+ same as <filename>.catalog</filename>
+ files.</para>
+
+ <para>If any
+ <replaceable>ID128</replaceable>s are
+ specified, only those entries are shown.
+ </para>
+ </listitem>
</varlistentry>
<varlistentry>