WHO
  lists the terminal IDs, user names and UICs of all logged on users,
  and the names of the active tasks owned by each user.

Status codes which precede tasknames are:
    <blank> Task executing      ?   Terminal input pending
       %    Task stopped        *   I/O pending
       /    Task checkpointed   $   Task suspended
       #    Waitfor in progress



    >WHO last-name   -or-   >WHO ggg,mmm   -or-   
WHO name
  searchs in the system account file for all user accounts that
  have "last-name" beginning with 'name'.
	WHO K - matches users KEATING, KOLAR, etc.
	WHO ? - matches ALL users.

WHO [ggg,mmm]
   searchs in the system account file for all user accounts with that UIC.

The name, login device/UIC and time/date of last login are displayed.
