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-rw-r--r--man/systemd.unit.xml17
1 files changed, 11 insertions, 6 deletions
diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 1afa600a08..ae243d6719 100644
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -229,12 +229,17 @@
the file system namespace. If this applies, a special
way to escape the path name is used, so that the
result is usable as part of a filename. Basically,
- given a path, "/" is replaced by "-", and all
- unprintable characters and the "-" are replaced by
- C-style "\x2d" escapes. The root directory "/" is
- encoded as single dash, while otherwise the initial
- and ending "/" is removed from all paths during
- transformation. This escaping is reversible.</para>
+ given a path, "/" is replaced by "-" and all other
+ characters which are not ASCII alphanumerics are
+ replaced by C-style "\x2d" escapes (except that "_"
+ is never replaced and "." is only replaced when it
+ would be the first character in the escaped path).
+ The root directory "/" is encoded as single dash,
+ while otherwise the initial and ending "/" are removed
+ from all paths during transformation. This escaping
+ is reversible. Properly escaped paths can be generated
+ using the <citerefentry><refentrytitle>systemd-escape</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ command.</para>
<para>Optionally, units may be instantiated from a
template file at runtime. This allows creation of