Shell programming, Haskell-style

Version on this page:1.2.8
LTS Haskell 21.24:1.6.1@rev:5
Stackage Nightly 2023-12-08:1.6.2@rev:2
Latest on Hackage:1.6.2@rev:2

See all snapshots turtle appears in

BSD-3-Clause licensed by Gabriel Gonzalez
Maintained by Gabriel439@gmail.com
This version can be pinned in stack with:turtle-1.2.8@sha256:48d8723065fa00cffdea2adeda6a034b6f94df6ccb46d114ff660624745f89ee,3431

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.