Thursday, February 17, 2011

ddent - Calculate the entropy of a part of a file

I've coded a small script to calculate the entropy of a part of a file (giving the start offset and the length), which is called ddent (source on GitHub), as it uses both dd and ent. It has a more compact output than ent, and I use it as a shortcut to a long command line I've been using regularly.


OFFSET and LENGTH can be either decimal, or hexadecimal (just be sure to prefix with 0x in this case).

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