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  1. is a Haskell library with operations for piping data through a pipeline of processes. Example: MD5 Let’s say you want to quickly get the MD5 sum of a string. You know you have the md5sum binary on your system, so you don’t bother installing an additional library to do it. Instead you call the md5sum executable, writing a function which might look like the following: import System.IO import System.Process getMD5 :: String -> IO String getMD5 s = do (input, output, _, pid) IO String get (Read Full Article)

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