systemctl: fix import-environment description, trim help to 80 cols

[elogind.git] / man / systemd.unit.xml

diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 2e298ca04f06caaa6318735a288c1bb4512eca9e..bf0deb1f97cd64d983a67daf1f9e0f25b58e4281 100644 (file)
--- 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
@@ -1556,6 +1561,16 @@
                     </tbody>
                   </tgroup>
                 </table>
+
+               <para>Please note that specifiers
+               <literal>%U</literal>, <literal>%h</literal>,
+               <literal>%s</literal> are mostly useless when systemd
+               is running in system mode.  PID 1 cannot query the
+               user account database for information, so the
+               specifiers only work as shortcuts for things which are
+               already specified in a different way in the unit
+               file. They are fully functional when systemd is
+               running in <option>--user</option> mode.</para>
         </refsect1>
 
         <refsect1>
@@ -1577,7 +1592,7 @@
                         <citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
-                        <citerefentry><refentrytitle>systemd-verify</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd-analyze</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry project='man-pages'><refentrytitle>capabilities</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>uname</refentrytitle><manvolnum>1</manvolnum></citerefentry>