Displays information about users
finger [options] [user-list]
finger utility displays the usernames of users, together with their full names, terminal device numbers, times they logged in, and other information. It can retrieve information from both local and remote systems.
Without any arguments,
finger provides a short (–s) report on users who are logged in on the local system. When you specify a user-list, which is a list of usernames that is not case sensitive,
finger provides a long (–l) report on each user in the user-list.
If a name starts with an at sign (@),
finger interprets the name following the @ as the name of a remote host and reports on the users on that system. If a username precedes the @ sign,