In Unix, how do I check who else is logged into the same computer as I am?

You can use any one of several Unix commands to see who is logged into the same computer as you. Each command yields different amounts of information:

• You can obtain a list of information about current users by entering the finger command with no options: finger
• For a list of usernames currently logged in, presented in a condensed, single-line format, enter: users
• For more information, including each login of a username, the terminal users are attached to, the date and time that login began, and possibly the computer from which they are making the connection, enter: who
• For extensive information, including username, terminal, IP number of the source computer, the time the login began, any idle time, process CPU cycles, job CPU cycles, and the currently running command, enter: w

For further information, see the online man pages. At the Unix prompt, enter any of the following:

At Indiana University, to get support for personal or departmental Linux or Unix systems, see At IU, how do I get support for Linux or Unix?

Also see:

• In Unix, what is screen, and how do I use it?
• In Unix, how do I kill another login session remotely?
• In Unix, how do I see if my friends or colleagues are logged into the same Unix machine as I am?
• In Unix, what is the man command, and how do I use it to read manual pages?