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ISOSIZE(8)                         SG_UTILS                         ISOSIZE(8)

       isosize - outputs the length of an iso9660 file system

       isosize [-x] [-d <num>] <iso9660_image_file>...

       This  command  outputs the length of an iso9660 file system that is contained in given file. That file may be a
       normal file or a block device (e.g. /dev/hdd or /dev/sr0). In the absence of any switches (or errors)  it  will
       output the size of the iso9660 file system in bytes. This can now be a large number (>> 4 GB).

       -x     output  in  humanly readable form the block count and the block size. Output uses the term "sectors" for

       -d <num>
              only has affect when -x is not given. The number output (if no errors) is the iso9660 file size in bytes
              divided by <num>.  So if <num> is the block size then the output number will be the block count.

       The  size  of the file (or block device) holding a iso9660 file system can be marginally larger than the actual
       size of the iso9660 file system. One reason for this is that cd writers are allowed to add "run out" sectors at
       the end of a iso9660 image.

sg3_utils-0.91                   December 2000                      ISOSIZE(8)