isosize(8) — Linux manual page

NAME \| SYNOPSIS \| DESCRIPTION \| OPTIONS \| EXIT STATUS \| AVAILABILITY \| COLOPHON

ISOSIZE(8)                System Administration               ISOSIZE(8)

NAME top

       isosize - output the length of an iso9660 filesystem

SYNOPSIS top

       isosize [options] iso9660_image_file

DESCRIPTION top

       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 top

       -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 top

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

AVAILABILITY top

       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/⟩.

COLOPHON top

       This page is part of the util-linux (a random collection of Linux
       utilities) project.  Information about the project can be found
       at ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.  If you
       have a bug report for this manual page, send it to
       util-linux@vger.kernel.org.  This page was obtained from the
       project's upstream Git repository
       ⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
       2020-12-18.  (At that time, the date of the most recent commit
       that was found in the repository was 2020-12-17.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

util-linux                      June 2011                     ISOSIZE(8)