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 The IDLE command is a lot like Matzkil--it does absolutely nothing. It does
 not produce any output, and it is the only command that does not even affect
 your idle time as reported by the "who" command, "+top", and other activity
 monitoring commands. The command exists for players whose internet providers
 shutdown their connections if there is no activity for some inconveniently
 short period of time. Those players can send the IDLE command to the game at
 regular intervals to circumvent the timeout without violating the terms of
 NEWS IDLING. Unlike other game commands, the IDLE command must be entered in
 all caps.

 There is also an attribute named IDLE. For information about that, see
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