inconsistent checksums on copied directories
charles f. zeitler
cfzeitler at yahoo.com
Tue Nov 21 18:15:33 UTC 2006
--- Dave Mitchell <davem at iabyn.com> wrote:
> 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]
>
> --
thanks for the tip....
i tried this & diff /tmp/t[12]
returned null....
charles f zeitler
: Do What Thou Wilt :
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