logger

    logger -- Report what jobs and changelists have changed

    p4 logger [ -c sequence# ] [ -t counter ]

	Dumps the event log, which notes updates to changes and jobs, for
	use with defect tracking integration.  The event log is enabled
	by setting the counter 'logger' (to 0) with p4 counter  Each
	event has a sequence number.  The presence of an entry in the log
	doesn't guarantee that the named entity has changed.

	If a sequence# is given with -c, only events since that number are
	listed.  If a counter is given with -t, only events since the 
	number of that counter are listed.  If both are given, then the
	counter is updated to the sequence number and nothing is output.
	If the update brings the counter to the highest sequence number
	in the log, the log is cleared.  This generally means that only
	one user can really make use of this option.

	'p4 logger' is not meant as an end-user command.  It exists to
	support propagating information to an external defect tracking
	system.

	'p4 logger -c' requires 'review' access granted by p4 protect