-w, –wtmp-only : This option only writes wtmpshutdown entry, it do not actually halt, power-off, reboot.įor example, running the following command to restart your system: reboot -pĬongratulations! You have successfully learned the shutdown and reboot commands on Linux systems. To use shell commands in python you should use the subprocess module. See the description of the option –force in systemctl(1) for more details. shutdown is a shell comand, not a python one. When it is specified twice, this results in immediate shutdown without contacting the system manager. When it is specified once, this results in the immediate but clean shutdown by the system manager. -f, –force : This option force immediate halt, power-off, or reboot. –reboot : This option reboot the machine, regardless of which one of the three commands is invoked. -p, –poweroff : This option will going to power-off the machine, regardless of which one of the three commands is being invoked. –halt : This option halt the machine, regardless of which one of the three commands is invoked. 
–help : This option prints a short help text and exit. In a Linux system administration, there comes a need to restart the server after the completion of some network and other major updates. Reboot command is used restart or reboot the system. Now that you learned what the shutdown command can do, you can clearly see its usefulness.The next command is the reboot command. You can combine all these examples/options and create a shutdown command of your own. If you scheduled a shutdown command by mistake, you can cancel it with the -c option: shutdown -c Please save your work.” Cancel a scheduled shutdown Shutdown -r +5 “The server will reboot in 5 minutes due to kernel upgrades. To reboot the system in 5 minutes and broadcast a message to all users, run: If you want to schedule a shutdown 10 minutes after running the command (giving you enough time to save everything), run the following command: shutdown -h +10 Reboot the system after 5 minutes with a message To schedule a shutdown after work hours are over, at 4:15 pm (16:15), run the following command: shutdown -h 16:15 "The server will shut down at 4:15pm, please save everything before leaving work." Schedule a shutdown after 10 minutes To reboot your system using the shutdown command, you just need to use the -r option: shutdown -r nowĪlthough a much easier way to reboot a Linux system is to just use the reboot command: reboot Schedule a shutdown at 4:15 pm with a message Here are some useful examples and use cases of the shutdown command: Reboot your system 
5 Examples of the shutdown command on Linux
This command will shut down the Linux system immediately. The most basic and often used example of the command is: sudo shutdown -h now -k – Don’t halt/power off/reboot, just send warnings.It may be used to halt, power-off or reboot the machine. – h – Equivalent to -P, overridden by -H shutdown schedules a time for the system to be powered down.Here are some of the useful you can use with the command: It’s often used to let others know that the system will shut down and that they should save all their work. The is a message all other logged-in users see. You can also just use “+m” if you want to wait only a certain amount of minutes. The is used to delay the shutdown command (shutdown the system after a certain amount of time). The basic syntax of the shutdown command is: shutdown You need to use the root user or use sudo with each command. So, open up the Terminal, or SSH into your server, and follow the instructions below. This tutorial will work on any Linux distro, including Ubuntu, Linux Mint, CentOS, Fedora, Debian, etc. It’s also useful if you’re writing a bash script or if you just prefer using the CLI instead of the GUI on your Linux distro. The shutdown command is especially useful for Linux servers.
Linux shutdown command how to#
In this tutorial, we’re going to show you how to shut down your Linux computer using the command-line interface (CLI), aka Terminal.
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