<para>If no preset files exist, <command>systemctl
preset</command> will enable all units that are
installed by default. If this is not desired and all
<para>If no preset files exist, <command>systemctl
preset</command> will enable all units that are
installed by default. If this is not desired and all
a preset file with a single, catchall
"<filename>disable *</filename>" line. (See example 1,
below.)</para>
a preset file with a single, catchall
"<filename>disable *</filename>" line. (See example 1,
below.)</para>
<filename>/etc/</filename> are reserved for the local
administrator, who may use this logic to override the
preset files installed by vendor packages. All preset
<filename>/etc/</filename> are reserved for the local
administrator, who may use this logic to override the
preset files installed by vendor packages. All preset
order, regardless in which of the directories they
reside. If multiple files specify the same unit name,
order, regardless in which of the directories they
reside. If multiple files specify the same unit name,
name will be applied. It is recommended to prefix all
filenames with a two-digit number and a dash, to simplify
the ordering of the files.</para>
name will be applied. It is recommended to prefix all
filenames with a two-digit number and a dash, to simplify
the ordering of the files.</para>