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-rw-r--r--man/systemd.unit.xml21
1 files changed, 16 insertions, 5 deletions
diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index fa8821afe5..54903fb52f 100644
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -622,8 +622,8 @@
environment and optionally test
whether it is a specific
implementation. Takes either boolean
- value to check if being executed in any
- virtual environment or one of the
+ value to check if being executed in
+ any virtual environment or one of the
<varname>qemu</varname>,
<varname>kvm</varname>,
<varname>vmware</varname>,
@@ -642,9 +642,20 @@
will always fail, otherwise
succeed. If multiple conditions are
specified the unit will be executed if
- at least one of them applies (i.e. a
- logical OR is
- applied).</para></listitem>
+ all of them apply (i.e. a logical AND
+ is applied). Condition checks can be
+ prefixed with a pipe symbol (|) in
+ which case a condition becomes a
+ triggering condition. If at least one
+ triggering condition is defined for a
+ unit then the unit will be executed if
+ at least one of the triggering
+ conditions apply and all of the
+ non-triggering conditions. If you
+ prefix an argument with the pipe
+ symbol and an exclamation mark the
+ pipe symbol must be passed first, the
+ exclamation second.</para></listitem>
</varlistentry>
</variablelist>