Parameters

condition

   Specifies either the severity level of an error or a Ctrl/Y
   interrupt. Specify one of the following keywords, which may be
   abbreviated to one or more characters:

   WARNING        Return status of warning occurs ($SEVERITY equals
                  0).

   ERROR          Return status of error occurs ($SEVERITY
                  equals 2).

   SEVERE_ERROR   Return status of error occurs ($SEVERITY
                  equals 4).

   CONTROL_Y      Ctrl/Y character occurs on SYS$INPUT.

   The default error condition is ON ERROR THEN EXIT.


command

   Specifies the DCL command line to be executed. Optionally, you
   can precede the command line with a dollar sign ($).

   If you specified an error condition as the condition parameter,
   the action is taken when errors equal to or greater than the
   specified level of error occur.