doing an md5sum rsync?

Martin Pool mbp at
Tue Sep 9 13:17:50 EST 2003

On  7 Sep 2003 Marc MERLIN <marc at> wrote:

> I don't know if this has been requested before, but I would really
> like for rsync to compute an md5sum for each file at the source and
> destination (with a flag turned off by default of course), and it
> would realize that I renamed files at the source by noticing a
> matching md5sum between different filenames
> It would then rename the destination instead of deleting it and
> resending the entire source, just because the filename changed.
> This would also take care of me moving files between directory trees,
> and again do a mv instead of a delete/resend (if I rsync the root of
> all that of course)
> Or is this possible already?

This is not possible yet.  It is on my wishlist for a future program.

Of course remotely detecting files that have moved between directories
might mean having the server hash every file on the filesystem.  So it
might be quite expensive...


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