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What are the linux shutdown commands?

王林
王林Original
2021-01-28 15:05:0961470browse

Linux shutdown commands include: shutdown command, halt command, poweroff command and reboot command. shutdown will schedule a time for the system to shut down. It can be used to stop, shut down, and restart the machine.

What are the linux shutdown commands?

The operating environment of this article: red hat enterprise linux 6.1 system, thinkpad t480 computer.

Detailed introduction:

(Learning video sharing: linux video tutorial)

shutdown command

shutdown will plan a system Time to shut down. It can be used to stop, shut down, and restart the machine.

You can specify a time string (usually now or hh:mm to specify hours/minutes) as the first parameter. Additionally, you can set up a broadcast message to be sent to all logged in users before the system is shut down.

Important: If the time parameter is used, the /run/nologin file will be created 5 minutes before the system is shut down. to ensure that no one can log in anymore.

shutdown command example:

# shutdown
# shutdown now
# shutdown 13:20  
# shutdown -p now  ### 关闭机器
# shutdown -H now  ### 停止机器      
# shutdown -r09:35 ### 在 09:35am 重启机器

To cancel an upcoming shutdown, just enter the following command:

# shutdown -c

halt command

halt tells the hardware to stop All CPU functions, but still remains powered. You can use it to keep your system in a low-maintenance state.

Note that in some cases it will shut down the system completely. The following is an example of the halt command:

# halt             ### 停止机器
# halt -p          ### 关闭机器
# halt --reboot    ### 重启机器

poweroff The command

poweroff will send an ACPI signal to notify the system to shut down.

The following is an example of the poweroff command:

# poweroff           ### 关闭机器
# poweroff --halt    ### 停止机器
# poweroff --reboot  ### 重启机器

reboot command

reboot notifies the system to restart.

# reboot           ### 重启机器
# reboot --halt    ### 停止机器
# reboot -p        ### 关闭机器

Related recommendations: linux tutorial

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