<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
- units shall rather be disabled it is necessary to ship
+ units shall rather be disabled, it is necessary to ship
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
- files are sorted by their filename in alphabetical
+ files are sorted by their filename in lexicographic
order, regardless in which of the directories they
- reside, to guarantee that a specific preset file takes
- precedence over another file with an alphabetically
- earlier name, if both files contain lines that apply
- to the same unit names. It is recommended to prefix
- all filenames with two-digit number, to simplify
- ordering.</para>
+ reside. If multiple files specify the same unit name,
+ the entry in the file with the lexicographically earliest
+ 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>
<para>If the administrator wants to disable a preset
file supplied by the vendor, the recommended way is to