Linux命令学习总结：详解命令学习总结：详解reboot命令命令
命令简介：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：命令语法：
/sbin/reboot [-n] [-w] [-d] [-f] [-i]
或
reboot [-n] [-w] [-d] [-f] [-i]
命令参数：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
使用示例：
1: 查看reboot命令的帮助信息
[root@DB-Server ~]# reboot --help
usage: reboot [-n] [-w] [-d] [-f] [-h] [-i] -n: don't sync before halting the system
-w: only write a wtmp reboot record and exit.
-d: don't write a wtmp record.
-f: force halt/reboot, don't call shutdown.
-h: put harddisks in standby mode.
-i: shut down all network interfaces.
[root@DB-Server ~]# man reboot
[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] /sbin/reboot [-n] [-w] [-d] [-f] [-i] /sbin/poweroff [-n] [-w] [-d] [-f] [-i] [-h]
DESCRIPTION
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
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.
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