poweroff(1m)

1halt(1M)                System Administration Commands                halt(1M)
2
3
4

NAME

6       halt, poweroff - stop the processor
7

SYNOPSIS

9       /usr/sbin/halt [-dlnqy]
10
11
12       /usr/sbin/poweroff [-dlnqy]
13
14

DESCRIPTION

16       The  halt  and  poweroff utilities write any pending information to the
17       disks and then stop the processor. The poweroff utility has the machine
18       remove power, if possible.
19
20
21       The halt and poweroff utilities normally log the system shutdown to the
22       system log daemon, syslogd(1M), and place  a  shutdown  record  in  the
23       login  accounting  file  /var/adm/wtmpx. These actions are inhibited if
24       the -n or -q options are present.
25

OPTIONS

27       The following options are supported:
28
29       -d    Force a system crash dump before rebooting. See  dumpadm(1M)  for
30             information on configuring system crash dumps.
31
32
33       -l    Suppress sending a message to the system log daemon, syslogd(1M),
34             about who executed halt.
35
36
37       -n    Prevent the sync(1M) before stopping.
38
39
40       -q    Quick halt. No graceful shutdown is attempted.
41
42
43       -y    Halt the system, even from a dialup terminal.
44
45

FILES

47       /var/adm/wtmpx    History of user access  and  administration  informa‐
48                         tion.
49
50

ATTRIBUTES

52       See attributes(5) for descriptions of the following attributes:
53
54
55
56
57       ┌─────────────────────────────┬─────────────────────────────┐
58       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
59       ├─────────────────────────────┼─────────────────────────────┤
60       │Availability                 │SUNWcsu                      │
61       └─────────────────────────────┴─────────────────────────────┘
62

NOTES

68       The halt and poweroff utilities do not  cleanly  shutdown  smf(5)  ser‐
69       vices.  Execute the scripts in /etc/rcnum.d or execute shutdown actions
70       in inittab(4). To ensure a complete shutdown of  system  services,  use
71       shutdown(1M) or init(1M) to reboot a Solaris system.
72
73
74
75SunOS 5.11                        2 Nov 2004                          halt(1M)