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What does "signature" and "delta" mean for rdiff? The man page doesn't say.
– Tor Klingberg
Commented Sep 12, 2016 at 12:54
1

To answer my own question, creating a delta with rdiff is a two step process. First create a signature file from the old file, then use the signature and new file to create the delta. They can be run together with rdiff signature oldfile | rdiff delta - newfile deltafile
– Tor Klingberg
Commented Sep 13, 2016 at 9:10
1

@TorKlingberg Could you post a new answer with a example? Let's say file1 and file2 are two similar files of 1GB each. 1) How to compute the diff? 2) How to save this diff into a patch file? 3) How to apply this patch file to file1 to recover file2?
– Basj
Commented Feb 3, 2020 at 20:55

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