@OPEN

@open <exit>=<object> [ ; <object2> ; ... ; <objectN> [ = <regname> ] ]

Opens an exit in the current room, optionally attempting to link it simultaneously. If a <regname> is specified, then the _reg/<regname> property on the player is set to the dbref of the new object. This lets the player refer to the object as $<regname> (i.e. ) in locks, @sets, etc. Opening an exit costs a penny, and an extra penny to link it, and you must control the room where it is being opened. Furthermore, any destination objects must be LINK_OK.

See also: @action, @link, @attach, and Building.