turtle

turtle is a reimplementation of the Unix command line environment in Haskell so that you can use Haskell as both a shell and a scripting language. Features include: Batteries included: Command an extended suite of predefined utilities Interoperability: You can still run external shell commands Portability: Works on Windows, OS X, and Linux Exception safety: Safely acquire and release resources Streaming: Transform or fold command output in constant space Patterns: Use typed regular expressions that can parse structured values Formatting: Type-safe printf-style text formatting Modern: Supports text and system-filepath Read Turtle.Tutorial for a detailed tutorial or Turtle.Prelude for a quick-start guide turtle is designed to be beginner-friendly, but as a result lacks certain features, like tracing commands. If you feel comfortable using turtle then you should also check out the Shelly library which provides similar functionality.