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poweroff:tldr:a7c98
The command "poweroff --halt" is used to shut down the computer by halting all processes and powering off the system.
Here's a breakdown of the different components of the command:
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"poweroff" is a command that is used to initiate a clean shutdown of the computer. It sends an ACPI (Advanced Configuration and Power Interface) signal to the operating system, which in turn initiates the shutdown process.
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"--halt" is an option or argument that is passed to the "poweroff" command. It specifies that the system should be halted before powering off.
When you run the "poweroff --halt" command, it stops all processes running on the computer, saves any pending data, unmounts file systems, and then halts the system. Finally, it powers off the computer completely.
Note: Depending on the operating system and the privileges of the user running the command, you might require administrative privileges or superuser access to execute this command successfully.