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Rainbow Compression

Try every combination
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7-Zip offers several compression options, including the dictionary size and desired compression algorithm. I've had varying luck with the different algorithms for varying uses.

For those times when the archive size is more important than compression time (or for bragging rights), proposed is a utility that tries every single combination and only keeps the smallest output file.

I guess I could write a shell script to do a pure 7-Zip implementation in an afternoon, so what makes this half baked? All kinds of silly algorithms could be tried with no effect on the output--just the run time. For example, you might try doing no compression at all (which would work nicely for empty files). Try doing a ROT13 and then compare the output against a Klingon dictionary. If that works out to be the smallest file, the output would include a shell script to reverse the process.

Such a system would make final output verification that much more important since any number of bugs could be introduced.

kevinthenerd, Mar 21 2016

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