SunOS/BSD 兼容命令包.
NAME
名称
shutdown - close down the system at a given time
在给定的时间内容关毕系统.
SYNOPSIS
大纲
/usr/ucb/shutdown [ -fhknr ] time [ warning-message ... ]
DESCRIPTION
shutdown provides an automated procedure to notify users
when the system is to be shut down. time specifIEs when
shutdown will bring the system down; it may be the Word now
(indicating an immediate shutdown), or it may specify a
future time in one of two formats: +number and hour:min.
The first form brings the system down in number minutes, and
the second brings the system down at the time of day indi-
cated in 24-hour notation.
当系统将要关毕前,shutdown提供一个自动的进程对用户进行提示.
在关毕系统时要求提供系统能存活的时间.时间可以指定为now(意思是
立即关毕)或者可以用下面两种格式的一种.+number 和hour:min.
第一种格式会指定在未来的number分种后关毕系统后者指定当天
准确的时间.
At intervals that get closer as the apocalypse approaches,
warning messages are displayed at terminals of all logged-in
users, and of users who have remote mounts on that Machine.
在关毕系统前远程用户和对该机器有mount操作的用户将每隔一段
时间就会得到警告信息.
At shutdown time a message is written to the system log dae-
mon, syslogd(1M), containing the time of shutdown, the
instigator of the shutdown, and the reason. Then a ter-
minate signal is sent to init, which brings the system down
to single-user mode.
关毕系统时将会向系统的登陆守护程序发一个信息,信息中包括系统关毕时间,
执行者,和原因.然后一个中断信号将发给init,init将会把系统重新起动到
单用户模式.
OPTIONS
As an alternative to the above procedure, these options can
be specified:
作为可选的开关,含义如下:
-f Arrange, in the manner of fastboot(1B), that when the
system is rebooted, the file systems will not be
checked.
进行快速起动,起动时不会检查文件系统.
-h Execute halt(1M).
执行halt(1M).
-k Simulate shutdown of the system. Do not actually shut
down the system.
模拟关机.不真正动作.
-n Prevent the normal sync(2) before stopping.
防止通常的对super-block的update.
-r Execute reboot(1M).
执行重起动.
FILES
/etc/rmtab remote mounted file system table
SunOS 5.6 Last change: 11 Oct 1994 1
SunOS/BSD Compatibility Package Commands shutdown(1B)
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
__________________________________
| ATTRIBUTE TYPE| ATTRIBUTE VALUE|
|__________________________________
| Availability | SUNWsCPU |
|_______________|_________________|
SEE ALSO
参照:
fastboot(1B), login(1), halt(1M), reboot(1M), syslogd(1M),
sync(2), rmtab(4), attributes(5)
NOTES
解释:
Only allows you to bring the system down between now and
23:59 if you use the absolute time for shutdown.
如果用绝对时间,时间指定必须在now和23:59之间.
SunOS 5.6 Last change: 11 Oct 1994 2
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