NAME

       isosize - output the length of an iso9660 filesystem

SYNOPSIS

       isosize [options] iso9660_image_file

DESCRIPTION

       This command outputs the length of an iso9660 file system that is contained in the 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 (and
       errors) it will output the size of the iso9660 filesystem in bytes.  This can now be a large number (>> 4
       GB).

OPTIONS

       -x, --sectors
              Show the block count and block size in human-readable form.  The output uses  the  term  "sectors"
              for "blocks".

       -d, --divisor number
              Only  has an effect when -x is not given.  The value shown (if no errors) is the iso9660 file size
              in bytes divided by number.  So if number is the block size then the shown value will be the block
              count.

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

util-linux                                          June 2011                                         ISOSIZE(8)