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System Administration Commandshalt(1M)


NAME

 halt, poweroff - stop the processor

SYNOPSIS

 /usr/sbin/halt [-dlnqy]
 /usr/sbin/poweroff [-dlnqy]

DESCRIPTION

 

The halt and poweroff utilities write any pending information to the disks and then stop the processor. The poweroff utility will have the machine remove power, if possible.

The halt and poweroff utilities normally log the system shutdown to the system log daemon, syslogd(1M), and place a shutdown record in the login accounting file /var/adm/wtmpx. These actions are inhibited if the -n or -q options are present.

OPTIONS

 

The following options are supported:

-d
Force a system crash dump before rebooting. See dumpadm(1M) for information on configuring system crash dumps.
-l
Suppress sending a message to the system log daemon, syslogd(1M), about who executed halt.
-n
Prevent the sync(1M) before stopping.
-q
Quick halt. No graceful shutdown is attempted.
-y
Halt the system, even from a dialup terminal.

FILES

 
/var/adm/wtmpx
History of user access and administration information.

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWcsu

SEE ALSO

 

dumpadm(1M), init(1M), reboot(1M), shutdown(1M), sync(1M), syslogd(1M), attributes(5)

NOTES

 

The halt utility does not execute the scripts in /etc/rc<num>.d or execute shutdown actions in inittab(4). To ensure a complete shutdown of system services, use shutdown(1M) or init(1M) to reboot a Solaris system.

The poweroff utility is equivalent to init 5.


SunOS 5.9Go To TopLast Changed 09 Aug 2000

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.