ISOSIZE(8)                   System Administration                  ISOSIZE(8)

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.

       -h, --help
           Display help text and exit.

       -V, --version
           Print version and exit.

EXIT STATUS
       0
           success

       1
           generic failure, such as invalid usage

       32
           all failed

       64
           some failed

REPORTING BUGS
       For bug reports, use the issue tracker at
       <https://github.com/util-linux/util-linux/issues>.

AVAILABILITY
       The isosize command is part of the util-linux package which can be
       downloaded from Linux Kernel Archive
       <https://www.kernel.org/pub/linux/utils/util-linux/>.

util-linux 2.40                   2024-04-06                        ISOSIZE(8)