套件：simhash（0.0.20161225-2） [debports]
generate similarity hashes to find nearly duplicate files
One of the questions that it's nice to be able to answer about a pair of files is the degree of similarity between them. This command-line tool is useful for estimating the "degree of similarity" between a pair of nominally sequential files such as textfiles. The tool uses Manassas's "shingleprinting" technique.