NAME

       isosize - output the length of an iso9660 filesystem

SYNOPSIS

       isosize [options] iso9660_image_file

DESCRIPTION

       This  command  outputs the length of an iso9660 filesystem that is contained in the specified file.  This
       file may be a normal file or a block device (e.g. /dev/hdd or /dev/sr0).  In the absence of  any  options
       (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.

EXIT STATUS

              0      success
              1      generic failure, such as invalid usage
              32     all failed
              64     some failed

AVAILABILITY

       The  isosize  command  is  part  of  the  util-linux  package  and is available from Linux Kernel Archive
       ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.