rsync - what can it do?

Green, Paul Paul.Green at
Wed Feb 5 05:57:51 EST 2003

bob parker [mailto:bob_parker at] asks:
> I've downloaded a 700meg iso by ftp using a steam powered dial up
> It took a week and naturally many resumes.
> Murphy's Law did not take a holiday of course so the md5sum of the
> iso does not match the md5sum of the one at the mirror.
> Can rsync be used to selectively fetch the part or parts of the iso that
> in error assuming that the mirror is also an rsync mirror?

Sure, but why not just let the computer do the work. Just tell rsync to
fetch the entire hierarchy. It will do the work necessary to find the
differences and send the minimal set of changes.


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