# isosize(8) - man - phpman

> **TLDR:** Display the size of an ISO file.
>
- Display the size of an ISO file:
  `isosize {{path/to/file.iso}}`
- Display the block count and block size of an ISO file:
  `isosize {{-x|--sectors}} {{path/to/file.iso}}`
- Display the size of an ISO file divided by a given number (only usable when --sectors is not given):
  `isosize {{-d|--divisor}} {{number}} {{path/to/file.iso}}`

*Source: tldr-pages*

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[ISOSIZE(8)](https://www.chedong.com/phpMan.php/man/ISOSIZE/8/markdown)                              System Administration                             [ISOSIZE(8)](https://www.chedong.com/phpMan.php/man/ISOSIZE/8/markdown)



## 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
           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

## REPORTING BUGS
       For bug reports, use the issue tracker at <https://github.com/karelzak/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 2.37.2                            2021-06-02                                   [ISOSIZE(8)](https://www.chedong.com/phpMan.php/man/ISOSIZE/8/markdown)