How to check the current user in Linux

How to check the current user in Linux?

Use the who command to view the currently logged in user, and use the w command to view all logged in user information.

1. The command who

displays the current logged in user, login time and login IP address. Refer to the picture below

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2. Command w

Display according to the title: current time, machine running time, number of logged in users, system load information.

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