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Shutdown -k is the command to send the above shutdown warning message, but doesn't actually shut down the system.

What is a shutdown command?

In Linux operating systems, the shutdown command is an instruction set that is used to turn off a system in a secure way.

Also, it's designed to alert or notify all logged-in users that the system is shutting down, and login operations would be blocked subsequently.

Generally, shutdown -k is the command to send the above shutdown warning message, but doesn't actually shut down the system.

Read more on Linux commands here: https://brainly.com/question/25480553

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