Who - who is in the game.
The who list shows all those players in the game who choose to make their presence known. You can elect whether or not to appear on who with the command:
set who to [on|off|desc]
The who command also shows an approximate total number of players in the game and the time since the game was last rebooted.
Use: who -o flags [on|off] to display or prevent display of castle flags.
Use: who -o wrap num to select the number of players on who before it wraps to two columns. Default is 19.
See also: set who