W and who (Check Current User Login Status)

The who command is used to show login records of users currently logged in. The w command is also used to show who is currently logged in but, in addition to that, it also gives information of what they are doing. These commands don't capture information about the users who are not logged in to the system.

This is an example result of the who command.

who

ubuntu   pts/0        2023-01-03 01:34 (54.240.197.53)

This is an example result of the w command.

w

 01:57:45 up 17:30,  1 users,  load average: 0.00, 0.00, 0.00
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
ubuntu   pts/1    54.239.99.12     01:52    1.00s  0.03s  0.00s w