Quick and dirty tool to find and delete duplicate files. Using Node.js / CoffeeScript. Supports MD5, SHA-1 and SHA-512 to generate checksums.
Tested on OS X, Linux Ubuntu x86 and Windows 10 x64.
$ npm install -g dedup.js
$ dedup.js -help
$ dedup.js -crazyfast -md5 /directory1 /directory2 /other-directories/something
$ dedup.js -faster -sub /home/user/photos
$ dedup.js -sha512 -delete /home/user1/photos /home/user2/photos