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详解 linux中的关机和重启命令
一 shutdown命令
shutdown [选项] 时间
选项：
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| 1 2 3 | -c：取消前一次关机命令 -h：关机 -r：重启 |
二 shutdown实战
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | [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! |
三 其他关机命令
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| 1 2 3 | halt init 0 poweroff |
四 其他重启命令
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| 1 2 3 | reboot init 6 |
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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| 1 2 | runlevel cat /etc/inittab |
七 登出
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| 1 | logout |
八 实战
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| 1 2 3 4 5 6 7 8 9 | [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 |
