1.  The following example shows the contents of separate slots:

    $ ROBOT SHOW SLOT 1,3
    SLOT:           1               Empty
    SLOT:           3               Full

    2.  The following example shows the contents of a range of slots:

    $ ROBOT SHOW SLOT 1-3
    SLOT:           1               Empty
    SLOT:           2               Full
    SLOT:           3               Full