[luau] Is there a command in Linux like MS's net session?

[Elizabeth Long]

I'm looking for anything, Linux command or util program that
will give me the same kind of info that MS's net session command
offers, which lists the following for all internal connections
on network.

computer name
user name
client type - OS
opens
idle time

I use it to keep track of who is logged into the network on which
machines during the day. 

Thanks,
Liz