isosize man page on ElementaryOS

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ISOSIZE(8)		     System Administration		    ISOSIZE(8)

       isosize - output the length of an iso9660 filesystem

       isosize [options] iso9660_image_file

       This  command outputs the length of an iso9660 file system that is con‐
       tained 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).

       -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  filesys‐
       tem.   One  reason  for this is that cd writers are allowed to add "run
       out" sectors at the end of an iso9660 image.

util-linux			   June 2011			    ISOSIZE(8)

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