一 shutdown命令
shutdown [选项] 时间
选项：
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3
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-c：取消前一次关机命令
-h：关机
-r：重启
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二 shutdown实战
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[root@localhost tmp]# date
Sat Jul 15 09:28:35 CST 2017
[root@localhost tmp]# shutdown -r 05:30
Shutdown scheduled for Sun 2017-07-16 05:30:00 CST, use 'shutdown -c' to cancel.
[root@localhost tmp]# shutdown -r 05:30 &
[1] 4936
[root@localhost tmp]# Shutdown scheduled for Sun 2017-07-16 05:30:00 CST, use 'shutdown -c' to cancel.
Broadcast message from root@localhost.localdomain (Sat 2017-07-15 09:30:00 CST):
The system is going down for reboot at Sun 2017-07-16 05:30:00 CST!
^C
[1]+ Done shutdown -r 05:30
[root@localhost tmp]# shutdown -c
Broadcast message from root@localhost.localdomain (Sat 2017-07-15 09:31:03 CST):
The system shutdown has been cancelled at Sat 2017-07-15 09:32:03 CST!
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三 其他关机命令
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3
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halt
init 0
poweroff
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四 其他重启命令
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reboot
init 6
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五 系统运行级别
六 查看系统运行级别以及修改系统的默认级别
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runlevel
cat /etc/inittab
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七 登出
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logout
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八 实战
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[root@localhost tmp]#
[root@localhost tmp]# runlevel
N 5
[root@localhost tmp]# init 3
PolicyKit daemon disconnected from the bus.
We are no longer a registered authentication agent.
[root@localhost tmp]# runlevel
5 3
[root@localhost tmp]# logout
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如有疑问请留言或者到本站社区交流讨论，以上就是Linux 中关机重启的命令详解，感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！
原文链接：http://cakin24.iteye.com/blog/2391507