Linux being a multi-user system allows multiple users to sign in and run various programs at the same time.
There are several methods to list current logged-in users on Linux and see what they are doing.
The users Command
The users command in Linux lists all users who are currently logged in in alphabetic order.
Note that if a user has two login sessions, it will appear twice in the output.
The output below tells that there are three users logged into the system currently.
Using the w Command
The w command in Linux shows logged-in users and their activities.
It prints the list of users and their current processes in the command line.
Using the last Command
The last command lists current as well as past logged-in and logged-out users.
you might easily install finger on your Linux distribution using the default package managers.
It alsoshows the processes that are currently running on the systemand their resource usage.
