What is the Linux system shutdown command?
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Linux system shutdown commands: shutdown, halt, poweroff, reboot
The shutdown command shutdown will schedule a shutdown for the system. It can be used to stop, shut down, and restart the machine.
You can specify a time string (usually now or hours / minutes with hh:mm) as the first parameter. You can also set up a broadcast message to be sent to all logged-in users before the system shuts down.
Important: if the time parameter is used, the / run/nologin file will be created 5 minutes before the system shuts down. To make sure no one can log in again.
Example of the shutdown command:
# shutdown # shutdown now # shutdown 13:20 # shutdown-p now # shut down the machine # shutdown-H now # stop the machine # shutdown-r09now 35 # restart the machine in 09:35am to cancel the upcoming shutdown, just enter the following command:
The # shutdown-chalt command halt tells the hardware to stop all CPU functions, but still keeps the power on. You can use it to keep the system in a low-level maintenance state.
Note that in some cases it will shut down the system completely. The following is an example of the halt command:
# halt # stop the machine # halt-p # shut down the machine # halt-- reboot # restart the machine poweroff command poweroff will send an ACPI signal to notify the system to shut down.
The following is an example of the poweroff command:
# poweroff # shut down the machine # poweroff-- halt # stop the machine # poweroff-- reboot # restart the machine reboot command reboot to notify the system to restart
# reboot # restart the machine # reboot-halt # stop the machine # reboot-p # shut down the machine above is all the contents of the article "what is the Linux system shutdown command", thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!
