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# Linux poweroff Command [ Linux Command Manual](#) The poweroff command is used to shut down the computer and cut off the power supply. Permission required: System administrator. ### Syntax poweroff **Parameter Description**: * -n : Do not write memory data back to the hard disk before shutting down * -w : Do not actually shut down, just write the record to the /var/log/wtmp file * -d : Do not write the record to the /var/log/wtmp file * -i : Stop all network-related devices before shutting down * -p : Set all hardware in the system to standby mode before shutting down the operating system. ### Example Shut down the system # poweroff [ Linux Command Manual](#)