发信人:;ndcbbs;(罐子里的妖怪),;信区:;Unix;;;;;
标;;题:;和BSD兼容的shutdown
发信站:;BBS;水木清华站;(Thu;Dec;23;15:55:47;1999)
SunOS/BSD;Compatibility;Package;Commands;shutdown(1B)
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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