turtle-1.3.0: Shell programming, Haskell-style

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.