isosize

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 con-
       tained 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 op-
       tions (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  filesys-
       tem.   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/>.

util-linux                         June 2011                        ISOSIZE(8)