<refsynopsisdiv>
<para><filename>systemd.service</filename>,
<filename>systemd.socket</filename>,
- <filename>systemd.mount</filename></para>
+ <filename>systemd.mount</filename>,
+ <filename>systemd.swap</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>Unit configuration files for services, sockets
- and mount points share a subset of configuration
- options which define the execution environment of
- spawned processes.</para>
+ mount points and swap devices share a subset of
+ configuration options which define the execution
+ environment of spawned processes.</para>
<para>This man page lists the configuration options
shared by these three unit types. See
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for the common options of all unit configuration
files, and
- <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>
and
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for more information on the specific unit
configuration files. The execution specific
configuration options are configured in the [Service],
- [Socket] resp. [Mount] section, depending on the unit
+ [Socket], [Mount] resp. [Swap] section, depending on the unit
type.</para>
</refsect1>
contain new-line separated variable
assignments. Empty lines and lines
starting with ; or # will be ignored,
- which may be used for
- commenting.</para></listitem>
+ which may be used for commenting. The
+ argument passed should be an absolute
+ file name, optionally prefixed with
+ "-", which indicates that if the file
+ does not exist it won't be read and no
+ error or warning message is
+ logged.</para></listitem>
</varlistentry>
<varlistentry>
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>
</para>
</refsect1>