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poweroff:tldr:46a62
The command "poweroff" is used in operating systems to shut down or power off the computer system. When you run the "poweroff" command, it sends a signal to the operating system indicating to initiate the shutdown process.
Once the command is executed, the operating system will perform various tasks to gracefully shut down the system. This includes terminating running processes, saving any unsaved data, closing open files, and informing connected devices that the system is about to shut down.
After completing these tasks, the operating system finally halts all operations, turns off the computer's power, and effectively shuts down the system. It is important to use this command with caution and ensure that all necessary data is saved and applications are properly closed before executing it, as unsaved work may be lost during the shutdown process.