ASSIGN		Associates a logical device name with a physical device

  SYNTAX
	ASSIGN physical-device-name logical-device-name

  SEMANTICS
	Physical-device-name is the RT-11 standard permanent name for
	the device. Logical-device-name is one to three alphanumeric
	characters long with no intervening spaces or tabs.  Or, if
	your monitor has Extended unit support, it may be an asterisk (*)
	to indicate that you are assigning a default device.  The 
	physical name and logical name must be separated by a space.

  OPTIONS
	None

  EXAMPLES
	ASSIGN RK1: DK:
	ASSIGN LS: LP:
	ASSIGN VM: *