标;;题:;Re:;SunOS里的shutdown
发信站:;BBS;水木清华站;(Thu;Dec;23;15:21:10;1999)
刚刚翻译完,别见笑:
'man;shutdown;';on;Sunos5.6
Maintenance;Commands;;;;;shutdown(1M)
系统维护命令;;;;shutdown(1M)
NAME
名称
shutdown;-;shut;down;system,;change;system;state
shutdown;-;关毕系统,转换相同的状态
SYNOPSIS
/usr/sbin/shutdown;[;-y;];[;-g;grace-period;]
[;-i;init-state;];[;message;]
DESCRIPTION
shutdown;is;executed;by;the;super-user;to;change;;the;;state
of;;the;;machine.;;;In;most;cases,;it;is;used;to;change;from
the;multi-user;state;(state;2);to;another;state.
shutdown;被super-user(超级用户)用来转换机器(系统)的状态.通常,
是从多用户状态(state;2;状态2)转换到其他状态.
By;default,;shutdown;brings;the;system;to;a;state;where;only
the;;console;has;access;to;the;operating;system.;;This;state
is;called;single-user.
shutdown在缺省时执行的结果是把系统转换成只能在控制台上登陆的模式.
这种模式叫单用户模式.
Before;starting;to;shut;down;daemons;and;killing;;processes,
shutdown;;sends;;a;;warning;message;and,;by;default,;a;final
message;asking;for;confirmation.;;message;is;a;;string;;that
is;sent;out;following;the;standard;warning;message;"The;sys-
tem;will;be;shut;down;in;...";;If;the;string;;contains;;more
than;;one;;word,;it;should;be;contained;within;single;(');or
double;(");quotation;marks.
在关毕守护程序并且杀掉进程前,shutdown会发出警告给用户,缺省情况下,
会有一个请求最后确认的询问.message是一个打印到标准输出上的警告信息:
"The;system;will;be;shut;down;in;..."如果这个string包含多个
单词,必须用单引号(')或双引号(")引用.
The;warning;message;and;the;user;provided;message;are;output
when;;there;;are;;7200,;3600,;1800,;1200,;600,;300,;120,;60,
and;30;seconds;remaining;before;shutdown;begins.;;See;;EXAM-
PLES.
警告信息以7200,3600,1800,1200,600,300,120,60,30秒为单位进行输出
到标准输出上.(参看后边的例子)
System;state;definitions;are:
下面是系统状态的定义:
state;0Stop;the;operating;system.
终止操作系统.
state;1State;1;is;referred;to;as;the;;administrative
state.;;;In;state;1;file;systems;required;for
multi-user;operations;are;mounted,;and;logins
requiring;;access;;to;multi-user;file;systems
can;be;used.;;When;the;system;comes;;up;;from
firmware;;mode;into;state;1,;only;the;console
is;active;and;other;multi-user;(state;2);ser-
vices;;are;;unavailable.;;;Note;;that;not;all
user;processes;are;stopped;when;transitioning
from;multi-user;state;to;state;1.
State;1状态被认为是管理状态.在State;1状态下多用户文件系统
会被安装,并且那些需要多拥护文件系统的登陆方式能够使用.;
当系统从(firmware;mode)硬件模式进入到state;1时,
只有控制台能够被使用,其他的多用户的服务将不能使用.
请注意从多用户状态(state;2)转换到state;1时,并不是所有的用户
进程都被杀掉.
state;s,;S;;;;;State;s;(or;S);is;referred;to;as;the;;single-
user;;state.;;;All;user;processes;are;stopped
on;;transitions;;to;;this;;state.;;;;In;;;the
single-user;;state,;file;systems;required;for
multi-user;logins;are;unmounted;and;the;;sys-
tem;can;only;be;accessed;through;the;console.
Logins;requiring;access;;to;;multi-user;;file
systems;cannot;be;used.
State;s(or;S)是所谓的单用户模式.当进入这种模式的时候
所有的用户的进程都将被杀掉.在单用户模式下,多用户文件系统
将不被安装.系统只能在控制台上被使用.多用户系统的登陆方式将
不可用.
SunOS;5.6;;;;;;;Last;change:;19;Dec;1995;;;;1
SunOS;5.6;;;;;;;Last;change:;19;Dec;1995;;;;1
Maintenance;Commands;;;;;shutdown(1M)
系统维护命令;;;;;shutdown(1M)
state;5Shut;the;machine;down;so;that;it;is;;safe;;to
remove;;the;;power.;;;Have;the;machine;remove
power,;if;possible.;;;The;;rc0;;procedure;;is
called;to;perform;this;task.
关毕机器,以便把电源关掉.rc0进程将被调用执行
这个任务.
state;6Stop;the;operating;system;and;reboot;;to;;the
state;;defined;;by;;the;;initdefault;entry;in
/etc/inittab.;;The;rc6;procedure;is;called;to
perform;this;task.
停止操作系统并且把系统重新起动到缺省的状态如
/etc/inittab里定义的那样.rc6将被调用来执行这项任务.
OPTIONS
-y;Pre-answer;the;confirmation;question;;so;;the
command;can;be;run;without;user;intervention.
用来对确认信息进行不敏感确认.(对所有确认都回答yes)
-g;grace-period
Allow;the;super-user;to;change;the;number;;of
seconds;from;the;60-second;default.
以60秒为单位指定警告信息发送的间隔.
-i;init-state;;If;there;are;warnings,;;init-state;;specifies
the;state;init;is;to;be;in.;;By;default,;sys-
tem;state;>qspq;is;used.
指定转换到的状态.如果有警告信息,将要转换的状态将被加
到警告信息中去.缺省情况下,>qspq将被执行.
EXAMPLES
In;the;following;example,;shutdown;is;being;executed;on;host
foo;and;is;scheduled;in;120;seconds.;;The;warning;message;is
output;2;minutes,;1;minute,;and;30;seconds;before;the;;final
confirmation;message.
下面的例子的目的是:主机将在120秒内被关毕.在最后确认之前,
警告信息每隔2分钟,1分钟30秒被输出到标准输出上..
example#;shutdown;-i;S;-g;120;"=====;disk;replacement;====="
Shutdown;started.;;;Tue;Jun;;;7;;14:51:40;PDT;;1994
Broadcast;Message;from;root;(pts/1);on;foo;Tue;Jun;;7;14:51:41...
The;system;will;be;shut;down;in;2;minutes
=====;disk;replacement;=====
Broadcast;Message;from;root;(pts/1);on;foo;Tue;Jun;;7;14:52:41...
The;system;will;be;shut;down;in;1;minutes
=====;disk;replacement;=====
Broadcast;Message;from;root;(pts/1);on;foo;Tue;Jun;;7;14:53:41...
The;system;will;be;shut;down;in;30;seconds
=====;disk;replacement;=====
Do;you;want;to;continue?;(y;or;n):
FILES
/etc/inittab;;;;controls;process;dispatching;by;init
ATTRIBUTES
See;;attributes(5);;for;;descriptions;;;of;;;the;;;following
SunOS;5.6;;;;;;;Last;change:;19;Dec;1995;;;;2
Maintenance;Commands;;;;;shutdown(1M)
attributes:
__________________________________
|;ATTRIBUTE;TYPE|;;ATTRIBUTE;VALUE|
|__________________________________
|;Availability;;|;;SUNWcsu|
|_______________|_________________|
SEE;ALSO
参照:;
boot(1M),;;halt(1M),;;init(1M),;;;killall(1M),;;;reboot(1M),
ufsdump(1M),;;;init.d(4),;;;inittab(4),;;nologin(4),;;attri-
butes(5)
SunOS;5.6;;;;;;;Last;change:;19;Dec;1995;;;;3
【;在;Cohen;(Tommy);的大作中提到:;】
【;在;Colinda;(无风无雨亦无情);的大作中提到:;】
:;;;;;shutdown;-r;now
Thanks,;but;can;you;do;me;a;favor;to;give
a;full;explanation;on;those;switches?
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