Trying Turtle shell with Nix

Using a simple wrapper script called turtle allows your Turtle shell programs to execute with a simple shebang. Nix will take care of installing the necessary dependencies if you don’t have them already.

Put turtle onto your PATH

$ source scripts/env

or simply:

$ PATH=$PWD/scripts:$PATH

or use direnv:

$ direnv allow

Execute example Turtle shell scripts

$ examples/hello-turtle
Turtle

a Turtle shell script with simple shebang

#!/usr/bin/env turtle

main = echo "Hello, Turtle!"

References

• Gabriel’s original blog post, Use Haskell for shell scripting
• Turtle on hackage
• Turtle on GitHub
• The Turtle Tutorial