Is there a utility that shows who is currently logged on?

A. The resource kit has a utility called WHOAMI.EXE. Itdisplays the domain/workgroup and username. You can also press Ctrl+Alt+Del andthe current logged on user will be shown.

Alternativly you could just display the %userdomain% and %username%variables, e.g.

C:> echo %userdomain%%username%