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/>.