1ISOSIZE(8)                   System Administration                  ISOSIZE(8)
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NAME

6       isosize - output the length of an iso9660 filesystem
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SYNOPSIS

9       isosize [options] iso9660_image_file
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DESCRIPTION

12       This command outputs the length of an iso9660 filesystem that is
13       contained in the specified file. This file may be a normal file or a
14       block device (e.g. /dev/hdd or /dev/sr0). In the absence of any options
15       (and errors), it will output the size of the iso9660 filesystem in
16       bytes. This can now be a large number (>> 4 GB).
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OPTIONS

19       -x, --sectors
20           Show the block count and block size in human-readable form. The
21           output uses the term "sectors" for "blocks".
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23       -d, --divisor number
24           Only has an effect when -x is not given. The value shown (if no
25           errors) is the iso9660 file size in bytes divided by number. So if
26           number is the block size then the shown value will be the block
27           count.
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29           The size of the file (or block device) holding an iso9660
30           filesystem can be marginally larger than the actual size of the
31           iso9660 filesystem. One reason for this is that cd writers are
32           allowed to add "run out" sectors at the end of an iso9660 image.
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EXIT STATUS

35       0
36           success
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38       1
39           generic failure, such as invalid usage
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41       32
42           all failed
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44       64
45           some failed
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REPORTING BUGS

48       For bug reports, use the issue tracker at
49       https://github.com/karelzak/util-linux/issues.
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AVAILABILITY

52       The isosize command is part of the util-linux package which can be
53       downloaded from Linux Kernel Archive
54       <https://www.kernel.org/pub/linux/utils/util-linux/>.
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58util-linux 2.37.2                 2021-06-02                        ISOSIZE(8)