Eddie is a tool to let you use Haskell code in shell scripts, in a manner similar to the way awk and other scripting languages can be used. The jump to 1.0.0 isn't because it's finished, but because this is a rewrite from the ground up to incorporate more modern Haskell features (the old version was my first non-trivial Haskell program), resulting in changes to various behaviors as well as some option tweaks. Most notably, it no longer uses [Char] for everything. In text mode, it uses Text, with options to specify both input and output encodings. In binary mode, it uses ByteString, with an option to set the output back to Text so you can generate summaries as opposed to simply filter. To make using Text and ByteString sane, it also uses ClassyPrelude instead of Prelude + Data.Char & Data.List so your Haskell list habits work - at least mostly. See CHANGES.md in the source or ChangeLog in the wiki for detailed changes. Otherwise, the manual page is available on the web site.