<para>Note that while systemd offers a flexible
dependency system between units it is recommended to
- use this functionality only sparsely and instead rely
+ use this functionality only sparingly and instead rely
on techniques such as bus-based or socket-based
- activation which makes dependencies implicit, which
- both results in a simpler and more flexible
- system.</para>
+ activation which make dependencies implicit, resulting
+ in a both simpler and more flexible system.</para>
<para>Some unit names reflect paths existing in the
file system name space. Example: a device unit
carries generic information about the unit that is not
dependent on the type of unit:</para>
- <variablelist>
+ <variablelist class='unit-directives'>
<varlistentry>
<term><varname>Description=</varname></term>
reference documentation that explains
what the unit's purpose is, followed
by how it is configured, followed by
- any other related
- documentation.</para></listitem>
+ any other related documentation. This
+ option may be specified more than once
+ in which case the specified list of
+ URIs is merged. If the empty string is
+ assigned to this option the list is
+ reset and all prior assignments will
+ have no effect.</para></listitem>
</varlistentry>
<varlistentry>
pipe symbol must be passed first, the
exclamation second. Except for
<varname>ConditionPathIsSymbolicLink=</varname>,
- all path checks follow
- symlinks.</para></listitem>
+ all path checks follow symlinks. If
+ any of these options is assigned the
+ empty string the list of conditions is
+ reset completely, all previous
+ condition settings (of any kind) will
+ have no effect.</para></listitem>
</varlistentry>
<varlistentry>
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
tool during installation of a unit:</para>
- <variablelist>
+ <variablelist class='unit-directives'>
<varlistentry>
<term><varname>Alias=</varname></term>
</varlistentry>
</variablelist>
+ <para>The following specifiers are interpreted in the
+ Install section: %n, %N, %p, %i, %U, %u, %m, %H, %b.
+ For their meaning see the next section.
+ </para>
</refsect1>
<refsect1>