Invokes the Exchange utility (EXCHANGE), which manipulates mass
    storage volumes that are written in formats other than those
    normally recognized by the operating system.

    EXCHANGE allows you to perform any of the following tasks:

    o  Create foreign volumes.

    o  Transfer files to and from the volume.

    o  List directories of the volume.

    For block-addressable devices, such as RT-11 disks, EXCHANGE
    performs additional operations such as renaming and deleting
    files. EXCHANGE can also manipulate Files-11 files that are
    images of foreign volumes; these files are called virtual
    devices.

    To transfer files to or from operating systems that do not
    support OpenVMS file organizations, use /NETWORK.

    Format

      EXCHANGE  [subcommand] [filespec] [filespec]