The Finger Command

By default, finger will list the login name, full name, terminal name, and write status
(shown as a “*” before the terminal name if write permission is denied), idle time, login
time, office location, and phone number (if known) for each current user connected to the
network.

Syntax
finger [-l] [User] [@host] [...]

Switches:
-b Brief output format
-f Supresses the printing of the header line.
-i Provides a quick list of users with idle time.
-l Forces long output format.
-p Supresses printing of the .plan file (if present)
-q Provides a quick list of users.
-s Forces short output form.
-w Forces narrow output form.

Examples
To display information for user1 on the computer users.microsoft.com, type the following command: finger user1@users.microsoft.com

To display information for all users on the computer users.microsoft.com, type the following command: finger @users.microsoft.com