file,(@file)

    The /COMPRESS , /DUMP and /RECOVER qualifier require a directory-
    file name as a parameter. A logical name or an indirect command
    file can also be used as a parameter e.g.: DIR/COMPRESS
    @DIR.COM . Thus, it is possible to generate a list with SEARCH
    device/OUTPUT=file and use that file as input to the DIRECTORY
    command. The list generated by DFU SEARCH will contain the
    device name in the file specification. If a list of files is
    used from another source which does not contain the device name,
    the /DEVICE must be used to append the device name to the file.

 device

    The /ALIAS, /EMPTY , /REBUILD_MFD and /VERSION qualifier require
    a device name as a parameter.