Looking at the code on GitHub[1] I don't understand how this qualifies as "literate" programming. I'm also not quite sure why you'd version binaries as well as /etc/passwd... There's also an awful lot of "// old line comment removed". Maybe I'm confused but this does not "read like a book".

EDIT: I found what I was looking for [2].

[1]: https://github.com/hgesser/ulix

[2]: https://raw.githubusercontent.com/hgesser/ulix/master/ulix-b...