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shortsum
2008 Mar 10
2
New rsync option checksum-path
...ood criteria
for identifying changes.
Suspecting that the changes were made only to ID3 tags, a very common
situation, one could write a shell script, say SHORTSUM, which would
calculate a checksum only on the first 10K bytes, for example, where
ID3 tags reside.
Using
rsync -av --checksum-path=SHORSUM --checksum /LOCAL-MP3-DIRECTORY/
SERVER:/REMOTE-MP3-DIRECTORY/
would therefore save a lot of processing power.
I am aware that rsync was designed in a way to dispense with previous
knowledge of how files are structured. However, a simple change as
proposed would allow users to custumize rsync ba...