HP OpenView Operations Administrator's Reference - filibeto.org

Configuring OVO
About Variables
Returns the value of an optional variable that is set by
opcmsg or opcmon (for example,
, and so on). To find out how to set this
variable, the opcmsg or opcmon man page.
NOTE The $OPTION variable cannot contain double quotes.
Use single quotes instead.
Resolving Variable Values in OVO
The variables used in OVO can take one of several values, depending on
the incoming message, default template configuration or the
configuration of the condition that they are matching. The order in which
the variable values are determined is as follows:
1. Value set by the external source (API/executable, event, and so on).
For example, if the following opcmsg command is called:
opcmsg app=APP object=O msg_text="Message text"
The variable is assigned the value APP.
2. Values for some variables can not be set by external sources and are
internally generated by OVO, for example, message ID.
3. If none of the above is valid for a variable, that variable uses the
value set in the Message Defaults section of the template for which
the variable is evaluated. If there is no default value set, the value of
that variable is empty or 0, depending on its type.
The above order is strictly adhered to when resolving variable values.
For example, if a value for is set in step 1, a default
value set in the Message Default section (step 3) is ignored.
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