How to Read from stdin in Elixir
Elixir is rather easy - as long as you get past the pattern matching barrier I stumpled into when writing about how to read program arguments.
The solution to this one was found on Elixir Sips though (you should really check that out, if you want to learn about elixir).
Run it by calling
elixir stdin.exs < stdin.exs and it will echo the source code back to you.