NAME¶
isosize - output the length of an iso9660 filesystem
SYNOPSIS¶
isosize [
options]
iso9660_image_file
DESCRIPTION¶
This command outputs the length of an iso9660 file system that is contained in
the given file. That file may be a normal file or a block device (e.g.
/dev/hdd or /dev/sr0). In the absence of any switches (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 filesystem. One reason
for this is that cd writers are allowed to add "run out" sectors at
the end of an iso9660 image.