isosize - output the length of an iso9660 filesystem
isosize [options] iso9660_image_file
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).
Show the block count and block size in human-readable
form. The output uses the term "sectors" for
-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
. 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.
generic failure, such as invalid usage