Usage: ON [#|+|-|^|&|@]EXEC_PROMPT [-|^]<parameters> [action]
  This is activated whenever an EXEC'd process displays a 
  "prompt".  A "prompt" is defined as any line of output from
  a process that doesn't end in a carriage return - line feed.
  The parameters are:
	$0	process number or logical name (if assigned)
	$1	The prompt string
