The SHOW PORT command displays information about a port. The output
    includes the type of port and one of these possible states:

    o  Full or <barcode> -- The port contains a cartridge. The bar code
       value of the cartridge occupying the port appears if the media
       robot is capable of reading cartridge bar codes.

    o  Empty -- The port contains no cartridge and is available for
       use.

    o  Unavailable -- The port is unavailable for use.

    Format

    SHOW [ROBOT robot_name] PORT [[[port_number]|[port_number-port_number]],...]

1  –  Parameters

    robot_name - The name for the media robot.

    port_number - An integer value indicating the robot port.

2  –  Example

    The following example shows the ports of a TL820 Automated Tape
    Library system:

    $ ROBOT SHOW PORT ROBOT $1$DUA0

    PORT:		1		Empty   	OUTPORT
    PORT:		0		Empty   	INPORT