USAGE for p4login v4.4.1:

p4login [<instance>] [-p <port> | -service] [-automation] [-all]

   or

p4login -h|-man

DESCRIPTION:

	In its simplest form, this script simply logs in P4USER to P4PORT
	using the defined password access mechanism.

	It generates a login ticket for the SDP super user, defined by
	P4USER when sourcing the SDP standard shell environment.  It is
	called from cron scripts, and so does not normally generate any
	output.

	If run on a replica with the -service option, the serviceUser defined
	for the given replica is logged in.

	The $SDP_AUTOMATION_USERS variable can be defined in
	/p4_N.vars. If defined, this should contain a
	comma-delimited list of automation users to be logged in when the
	-automation option is used.  A definition might look like:

	export SDP_AUTOMATION_USERS=builder,trigger-admin,p4review

	Login behaviour is affected by external factors:
	1. P4AUTH, if defined, affects login behavior on replicas.

	2. The auth.id setting, if defined, affects login behaviors (and
	generally simplifies them).

	3. The $SDP_ALWAYS_LOGIN variable.  If set to 1, this causes p4login
	to always execute a 'p4 login' command to generate a login ticket,
	even if a 'p4 login -s' test indicates none is needed.  By default,
	the login is skipped if a 'p4 login  -s' test indicates a long-term
	ticket is available that expires 31+days in the future.
	Add "export SDP_ALWYAYS_LOGIN=1" to /p4_N.vars to
	change the default for an instance, or to /p4/common/bin/p4_vars to
	change it globally.  If unset, the default is 0.

	4. If the P4PORT contains an ssl: prefix, the P4TRUST relationship
	is checked, and if necessary, a p4 trust -f -y is done to establish
	trust.

OPTIONS:
<instance>
	Specify the SDP instances.  If not specified, the SDP_INSTANCE
	environment variable is used instead.  If the instance is not
	defined by a parameter and SDP_INSTANCE is not defined, p4login
	exists immediately with an error message.

 -service
	Specify -service when run on a replica or edge server to login
	the super user and the replication service user.

	This option is not compatible with '-p <port>'.

 -p <port>
	Specify a P4PORT value to login to, overriding the default
	defined by P4PORT setting in the environment.  If operating
	on a host other than the master, and auth.id is set, this
	flag is ignored; the P4TARGET for the replica is used
	instead.

	This option is not compatible with '-service'.

 -automation
	Specify -automation to login external automation users defined
	by the $SDP_AUTOMATION_USERS variable.

 -v     Show ouptput of login attempts, which is suppressed by default.
	Setting SDP_SHOW_LOG=1 in the shell environment has the same
	effect as -v.

 -L <log>
	Specify the log file to use.  The default is /p4/N/logs/p4login.log

 -d     Set debugging verbosity.

 -D     Set extreme debugging verbosity.

HELP OPTIONS:
 -h	Display short help message
 -man	Display man-style help message

EXAMPLES:
	1. Typical usage for automation, with instance SDP_INSTANCE defined
	in the environment by sourcing p4_vars, and logging in only the super
	user P4USER to P4PORT:
	source /p4/common/bin/p4_vars abc
	p4login

	Login in only P4USER to the specified port, P4MASTERPORT in this example:
	p4login -p $P4MASTERPORT

	Login the super user P4USER, and then login the replication serviceUser
	for the current ServerID:
	p4login -service

	Login external automation users (see SDP_AUTOMATION_USERS above):
	p4login -automation

	Login all users:
	p4login -all

	Or: p4login -service -automation

LOGGING:
	This script generates no output by default.  All (stdout and stderr) is
	logged to /p4/N/logs/p4login.log.

	The exception is usage errors, which result an error being sent to
	stderr followed usage info on stdout, followed by an immediate exit.

	If the '-v' flag is used, the contents of the log are displayed to
	stdout at the end of processing.

EXIT CODES:
	An exit code of 0 indicates a valid login ticket exists, while a
	non-zero exit code indicates a failure to login.

