file1,file2,...,@file3

 Specify a file (or list of files) with a full file specification
 or a logical name. Also use an indirect command file may be used,
 eg.: DEFRAG @DEFRAG.COM(/device=<device>). Thus it is possible
 to generate a list with SEARCH device/OUTPUT=file and use that file
 as input to the DEFRAG command. The list generated by DFU SEARCH will
 contain the device name in the file specification. If there is a filelist
 from another source which does not contain the device name, the

1    /DEVICE qualifier must be used to append the device name to the file.