linux的reboot命令

时间：2017-07-13 11:24:58 佳洲1085由分享

学习啦在线学习网　　Linux下的reboot命令是用来重启linux系统的。下面由学习啦小编为大家整理了linux下resboot命令的相关知识，希望对大家有帮助!

　　linux的reboot命令详解

　　命令简介：

　　该命令用来重启Linux系统。相当于Windows系统中的restart命令。

　　命令语法：

学习啦在线学习网　　/sbin/reboot [-n] [-w] [-d] [-f] [-i]

　　或

学习啦在线学习网　　reboot [-n] [-w] [-d] [-f] [-i]

　　命令参数：

参数	长参数	描叙
-d		重新启动时不把数据写入记录文件/var/tmp/wtmp
-f		强制重新开机，不调用shutdown指令的功能。
-h		在系统关机或poweroff之前，将所有的硬盘处于待机模式
-i		关闭网络设置之后再重新启动系统
-n		保存数据后再重新启动系统
-p		When halting the system, do a poweroff. This is the default when halt is called as poweroff
-w		仅做测试，并不真的将系统重新开机，只会把重开机的数据写入/var/log目录下的wtmp记录文件
	--help	显示命令在线帮助

　　linux的reboot命令使用示例

学习啦在线学习网　　1: 查看reboot命令的帮助信息

　　[root@DB-Server ~]# reboot --help

　　usage: reboot [-n] [-w] [-d] [-f] [-h] [-i]

学习啦在线学习网　　-n: don't sync before halting the system

学习啦在线学习网　　-w: only write a wtmp reboot record and exit.

　　-d: don't write a wtmp record.

学习啦在线学习网　　-f: force halt/reboot, don't call shutdown.

学习啦在线学习网　　-h: put harddisks in standby mode.

　　-i: shut down all network interfaces.

　　[root@DB-Server ~]# man reboot

学习啦在线学习网　　[root@DB-Server ~]# man reboot

　　HALT(8) Linux System Administrator鈥檚 Manual HALT(8)

　　NAME

　　halt, reboot, poweroff - stop the system.

　　SYNOPSIS

　　/sbin/halt [-n] [-w] [-d] [-f] [-i] [-p] [-h]

学习啦在线学习网　　/sbin/reboot [-n] [-w] [-d] [-f] [-i]

　　/sbin/poweroff [-n] [-w] [-d] [-f] [-i] [-h]

　　DESCRIPTION

学习啦在线学习网　　Halt notes that the system is being brought down in the file /var/log/wtmp, and then either tells the kernel to halt, reboot or poweroff the system.

　　If halt or reboot is called when the system is not in runlevel 0 or 6, in other words when it鈥檚 running normally, shutdown will be invoked instead (with

学习啦在线学习网　　the -h or -r flag). For more info see the shutdown(8) manpage.

　　The rest of this manpage describes the behaviour in runlevels 0 and 6, that is when the systems shutdown scripts are being run.

　　OPTIONS

　　-n Don鈥檛 sync before reboot or halt. Note that the kernel and storage drivers may still sync.

　　-w Don鈥檛 actually reboot or halt but only write the wtmp record (in the /var/log/wtmp file).

　　-d Don鈥檛 write the wtmp record. The -n flag implies -d.

学习啦在线学习网　　-f Force halt or reboot, don鈥檛 call shutdown(8).

学习啦在线学习网　　-i Shut down all network interfaces just before halt or reboot.

　　-h Put all harddrives on the system in standby mode just before halt or poweroff.

学习啦在线学习网　　-p When halting the system, do a poweroff. This is the default when halt is called as poweroff.

学习啦在线学习网　　DIAGNOSTICS

学习啦在线学习网　　If you鈥檙e not the superuser, you will get the message 鈥榤ust be superuser鈥? Users logged in locally on the console can call halt, reboot, and poweroff

学习啦在线学习网　　without supplying the root password, due to pam_console (8).

　　NOTES

　　Under older sysvinit releases , reboot and halt should never be called directly. From release 2.74 on halt and reboot invoke shutdown(8) if the system is

学习啦在线学习网　　not in runlevel 0 or 6. This means that if halt or reboot cannot find out the current runlevel (for example, when /var/run/utmp hasn鈥檛 been initialized

　　correctly) shutdown will be called, which might not be what you want. Use the -f flag if you want to do a hard halt or reboot.

　　The -h flag puts all harddisks in standby mode just before halt or poweroff. Right now this is only implemented for IDE drives. A side effect of putting

　　the drive in standby mode is that the write cache on the disk is flushed. This is important for IDE drives, since the kernel doesn鈥檛 flush the write-cache

学习啦在线学习网　　itself before poweroff.

学习啦在线学习网　　The halt program uses /proc/ide/hd* to find all IDE disk devices, which means that /proc needs to be mounted when halt or poweroff is called or the -h

学习啦在线学习网　　switch will do nothing.

　　AUTHOR

　　Miquel van Smoorenburg, miquels@cistron.nl

linux的reboot命令

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