<varlistentry>
<term><varname>MESSAGE=</varname></term>
<listitem>
- <para>The human readable
+ <para>The human-readable
message string for this
entry. This is supposed to be
the primary text shown to the
<varlistentry>
<term><varname>MESSAGE_ID=</varname></term>
<listitem>
- <para>A 128bit message
+ <para>A 128-bit message
identifier ID for recognizing
certain message types, if this
is desirable. This should
- contain a 128bit id formatted
- as lower-case hexadecimal
+ contain a 128-bit ID formatted
+ as a lower-case hexadecimal
string, without any separating
dashes or suchlike. This is
- recommended to be a UUID
- compatible ID, but this is not
+ recommended to be a
+ UUID-compatible ID, but this is not
enforced, and formatted
differently. Developers can
generate a new ID for this
- purpose with
- <command>journalctl
- --new-id</command>.</para>
+ purpose with <command>journalctl
+ <option>--new-id</option></command>.
+ </para>
</listitem>
</varlistentry>
0 (<literal>emerg</literal>)
and 7
(<literal>debug</literal>)
- formatted as decimal
+ formatted as a decimal
string. This field is
compatible with syslog's
priority concept.</para>
<para>The code location
generating this message, if
known. Contains the source
- file name, the line number and
+ filename, the line number and
the function name.</para>
</listitem>
</varlistentry>
any. Contains the numeric
value of
<citerefentry><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>
- formatted as decimal
+ formatted as a decimal
string.</para>
</listitem>
</varlistentry>
<para>The process, user and
group ID of the process the
journal entry originates from
- formatted as decimal
+ formatted as a decimal
string.</para>
</listitem>
</varlistentry>
any is known that is different
from the reception time of the
journal. This is the time in
- usec since the epoch UTC
- formatted as decimal
+ microseconds since the epoch UTC,
+ formatted as a decimal
string.</para>
</listitem>
</varlistentry>
<para>The kernel boot ID for
the boot the message was
generated in, formatted as
- 128bit hexadecimal
+ a 128-bit hexadecimal
string.</para>
</listitem>
</varlistentry>
JSON Format</ulink>, the addresses of journal entries
are serialized into fields prefixed with double
underscores. Note that these aren't proper fields when
- stored in the journal, but addressing meta data of
+ stored in the journal but for addressing meta data of
entries. They cannot be written as part of structured
log entries via calls such as
<citerefentry><refentrytitle>sd_journal_send</refentrytitle><manvolnum>3</manvolnum></citerefentry>. They
describes the position of an
entry in the journal and is
portable across machines,
- platforms and journal
- files.</para>
+ platforms and journal files.
+ </para>
</listitem>
</varlistentry>
<term><varname>__REALTIME_TIMESTAMP=</varname></term>
<listitem>
<para>The wallclock time
- (CLOCK_REALTIME) at the point
- in time the entry was received
- by the journal, in usec since
- the epoch UTC formatted as
- decimal string. This has
- different properties from
- <literal>_SOURCE_REALTIME_TIMESTAMP=</literal>
+ (<constant>CLOCK_REALTIME</constant>)
+ at the point in time the entry
+ was received by the journal,
+ in microseconds since the epoch
+ UTC, formatted as a decimal
+ string. This has different
+ properties from
+ <literal>_SOURCE_REALTIME_TIMESTAMP=</literal>,
as it is usually a bit later
- but more likely to be
- monotonic.</para>
+ but more likely to be monotonic.
+ </para>
</listitem>
</varlistentry>
<term><varname>__MONOTONIC_TIMESTAMP=</varname></term>
<listitem>
<para>The monotonic time
- (CLOCK_MONOTONIC) at the point
- in time the entry was received
- by the journal in usec
- formatted as decimal
+ (<constant>CLOCK_MONOTONIC</constant>)
+ at the point in time the entry
+ was received by the journal in
+ microseconds, formatted as a decimal
string. To be useful as an
- address for the entry this
- should be combined with with
- boot ID in
- <literal>_BOOT_ID=</literal>.</para>
+ address for the entry, this
+ should be combined with with the
+ boot ID in <literal>_BOOT_ID=</literal>.
+ </para>
</listitem>
</varlistentry>
</variablelist>