halt(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  informa-
     tion  to the disks and then stop the processor. The poweroff
     utility has 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  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|

SEE ALSO

     dumpadm(1M), init(1M), reboot(1M),  shutdown(1M),  sync(1M),
     syslogd(1M), inittab(4), attributes(5)

NOTES

     The halt and poweroff utilities do not execute  the  scripts
     in  /etc/rcnum.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.