On Mon, Nov 20, 2006 at 03:40:20PM -0800, charles f. zeitler wrote:
> when i copy a directory,
> using cp -a or
> cd from_dir ; tar cf - original_dir | ( cd to_dir ; \
> tar xfBp - )
>
> and check them both with
> tar cf - dir | sha1sum,
> i get different checksums
> although both dirs have
> the same name and
> matching pairs of files
> have the same sha1sum.
As well the other issues people have suggested, tar doesn't guarantee
any order in which it will process the files in a particular directory. So
your two tars may have the same contents but in a different order.
Try
cd from_dir; tar cf - | tar tf - > /tmp/t1
cd to_dir; tar cf - | tar tf - > /tmp/t2
diff /tmp/t[12]
--
"The greatest achievement of the Austrians has been convincing the world
that Hitler was German, and Mozart Austrian."
