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 eg.: 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 filelist 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.