During a Mac's ShutDown, a window shows:

Is there a way to find out more info, such as who the user is (username), the IP of that user, and machine name? The Terminal app can show some info by using w or who, but only another username is shown. Can more info be obtained by using another command line or another app?
(correction: seems like w and who are showing the local users only)
wandwhowill report users who are logged in viassh. But if they are sharing files (or other resources?) on your computer, you won't find them that way. – Harald Hanche-Olsen Jul 8 '12 at 22:04