Root around to find yours. If you aren't running NFS, this command does nothing for you. Same as 'lsmod'. Info on Users and Their Environment w Displays uptime as well as a list of current users and what they are doing. Displays currently logged in users, their terminal, when they logged in, and their idle time.
Idle time is listed for any user who has been inactive for more than a minute.
Displays your environment variables. Show your present working directory. Displays a list of currently logged in users. User's logged in to multiple terminals will be listed once for each session. This is the list you cycle through when pressing the up arrow.