WHO

Syntax: who
Syntax: who <level-range>
Syntax: who <class or race>
Syntax: who <class or race> <level-range>

WHO shows the people currently in the game.  Some people may choose to
remain unseen and won't appear on the WHO
 
WHO without any arguments shows all of the (visible) people currently playing.

With arguments, WHO can show players of certain classes or levels.
For example:
 
who 10          lists all players of level 10 or above
who 15 20       lists all players between level 15 and 20
who cleric      lists all clerics playing
who immortal    lists all immortals playing
who cleric 1 5  lists all clerics between levels 1 and 5
who elf cleric  lists all elven clerics

Classes and races may be abbreviated.