centos系统关机、重启

关机

systemctl poweroff -i
shutdown -h now
shutdown -h 30 #30分钟后关机


重启系统

systemctl reboot -i
shutdown -r now
shutdown -h 30 #30分钟后重启
reboot


发出关机警告

shutdown -k 30 “system will reboot ” #警告30分钟后将会重启系统&＃xff0c;不会做操作


取消操作

shutdown -c #取消之前下达的关机和重启指令


举例

[root&＃64;wjy ~]# shutdown -r 30
Shutdown scheduled for 五 2022-01-28 09:41:46 CST, use &＃39;shutdown -c&＃39; to cancel.
[root&＃64;wjy ~]# shutdown -cBroadcast message from root&＃64;wjy (Fri 2022-01-28 09:11:52 CST):The system shutdown has been cancelled at Fri 2022-01-28 09:12:52 CST![root&＃64;wjy ~]# shutdown -h 30
Shutdown scheduled for 五 2022-01-28 09:42:00 CST, use &＃39;shutdown -c&＃39; to cancel.
[root&＃64;wjy ~]# shutdown -cBroadcast message from root&＃64;wjy (Fri 2022-01-28 09:12:02 CST):The system shutdown has been cancelled at Fri 2022-01-28 09:13:02 CST![root&＃64;wjy ~]#