evmwatch man page on HP-UX

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evmwatch(1)							   evmwatch(1)

       evmwatch - monitor EVM events

       show_template]] filter_expr] channel-list] timeout] reconnect-timeout]

       The command subscribes to the events specified by the option and passes
       all events to its stream as they arrive.	 Output is in the form of  raw
       EVM events.

       If  the	option	is specified, automatically starts and pipes the event
       stream into  it,	 producing  a  formatted  display  of  events.	 If  a
       show_template  argument	is  supplied, the specified template string is
       passed to through its own option.  See evmshow(1) for more information.

       If cannot connect to the EVM daemon, it terminates immediately with  an
       error message.  If it succeeds in connecting but subsequently loses the
       connection, it attempts to reconnect periodically until the  reconnect-
       timeout	period	expires.  The retry period is one second for the first
       minute, and five seconds thereafter.

       Automatically starts
		 to produce a formatted display of the received events.

       Subscribes for notification of events matching
		 filter_expr.  See EvmFilter(5) for the syntax of filter_expr.
		 By default, the command subscribes for all events.

       Template string to be passed to
		 if the option is also specified.  If the option is not speci‐
		 fied,	this  argument	is  ignored.   See  evmshow(1)	for  a
		 description of the template string.

       Terminates if no event is processed in the time specified by
		 timeout.   The	 format	 of timeout is [[[dayshoursminutessec‐
		 onds, where days, hours, and minutes can be any integer up to
		 9999,	and seconds can be any integer up to 9999999.  Omitted
		 values are interpreted	 as  zero.   If	 the  converted	 value
		 exceeds  100,000,000  seconds, it is automatically reduced to
		 that value with  no  error  being  reported.	The  timer  is
		 restarted each time an event is received.

       Retrieves copies of all of the registered event templates from the EVM
		 daemon	 that  match  the supplied filter string and for which
		 the user has access authorization.  It writes	the  templates
		 to as EVM events and terminates.

       Terminates with a zero exit value as soon as the first event matching
		 filter_expr is processed.

       Specifies the period for which
		 should	 continue to attempt to reconnect if the connection to
		 the EVM daemon is lost.  The format of	 reconnect-timeout  is
		 [[[dayshoursminutesseconds,  where  days,  hours, and minutes
		 can be any integer up to 9999, and seconds can be any integer
		 up  to	 9999999.  Omitted values are interpreted as zero.  If
		 the converted value exceeds 100,000,000 seconds, it is	 auto‐
		 matically reduced to that value with no error being reported.

		 If  reconnect-timeout	is  zero,  terminates immediately if a
		 disconnection occurs.	If this option is not  specified,  the
		 reconnection timeout is set to five minutes.

       The following exit values are returned:

       Successful completion
       An error occurred, including timeout.

       ·  The  following  example watches for all events with a priority of at
	  least 200 and	 displays  them	 on  Events  are  piped	 automatically
	  through to produce a formatted event display.

       ·  The  following example shows how waits until another process posts a
	  particular event and	then  continues.   Redirection	of  output  to
	  implies that the content of the event is of no concern.

	      The  following script builds on the prior example.  It waits for
	      five minutes (300 seconds) for the event to occur	 or  exits  as
	      soon as the event happens.

       ·  The  following  shell	 script waits for up to five minutes (300 sec‐
	  onds) for a pulse  event  to	be  received.	Each  time  the	 pulse
	  arrives,  the	 timer	is reset and waits for the next pulse.	If the
	  timer expires, terminates with an error  code,  a  warning  is  dis‐
	  played, a high priority event is posted, and the script exits.

       ·  The  following example lists the names of all registered events that
	  the user is authorized to access.

       The command rejects attempts to output raw events to a terminal device.

       The command receives events only for which the user has	access	autho‐
       rization.  See evm.auth(4) for details of access authorization.

       Definition of the sockets and protocols used for Internet Services

       evmget(1), evmpost(1), evmshow(1), evmsort(1).

       evmfilterfile(4), services(4).

   Event Management

   EVM Events

   Event Filter


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