users, u - Displays a compact list of users who are on the system
command lists the login names of the users
currently on the system in a compact, one-line format. The usernames are
in collated order.
To list the users currently logged in to your system, enter: system> users
The system responds as follows: berg jackson diaz shahuri smith wong
Commands: finger(1), last(8), w(1), who(1)