<term><option>--disk-usage</option></term>
<listitem><para>Shows the current disk
- usage of all
- journal files.</para></listitem>
+ usage of all journal files. This shows
+ the sum of the disk usage of all
+ archived and active journal
+ files.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--vacuum-size=</option></term>
+ <term><option>--vacuum-time=</option></term>
+
+ <listitem><para>Removes archived
+ journal files until the disk space
+ they use falls below the specified
+ size (specified with the usual K, M,
+ G, T suffixes), or all journal files
+ contain no data older than the
+ specified timespan (specified with the
+ usual s, min, h, days, months, weeks,
+ years suffixes). Note that running
+ <option>--vacuum-size=</option> has
+ only indirect effect on the output
+ shown by <option>--disk-usage</option>
+ as the latter includes active journal
+ files, while the former only operates
+ on archived journal
+ files. <option>--vacuum-size=</option>
+ and <option>--vacuum-time=</option>
+ may be combined in a single invocation
+ to enforce both a size and time limit
+ on the archived journal
+ files.</para></listitem>
</varlistentry>
<varlistentry>
<listitem><para>Asks the Journal
daemon to flush any log data stored in
- <filename>/run/systemd/log</filename>
+ <filename>/run/log/journal</filename>
into
- <filename>/var/systemd/log</filename>,
+ <filename>/var/log/journal</filename>,
if persistent storage is enabled. This
call does not return until the
operation is