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.

Set- and Map-like types that remember the order elements were inserted

This package provides portable implementations of parts of the unix package. This package re-exports the unix package when available. When it isn't available, portable implementations are used.

Alternative parser for the Cassava package written with Megaparsec that provides for better error messages at the expense of some speed.

This package provides various primitive memory-related operations.

SecureMem is similar to ByteString, except that it provides a memory chunk that will be auto-scrubbed after it run out of scope.

Per Conor McBride, the Newtype typeclass represents the packing and unpacking of a newtype, and allows you to operate under that newtype with functions such as ala'.

This library provides a wrapper to the Linux kernel's inotify feature, allowing applications to subscribe to notifications when a file is accessed or modified.

Atomically write to a file on POSIX-compliant systems while preserving permissions. mv is an atomic operation. This makes it simple to write to a file atomically just by using the mv operation. However, this will destroy the permissions on the original file. This library preserves permissions while atomically writing to a file.

This library provides exception safe semaphores that can be used in place of QSem, QSemN, and SampleVar, all of which are not exception safe and can be broken by killThread.

This library provides mechanisms to efficiently run periodic, on-demand actions in Haskell.

This library provides a framework for size-based enumerations.

The options package lets library and application developers easily work with command-line options.

This library provides Haskell bindings for the OpenGL Utility Toolkit, a window system-independent toolkit for writing OpenGL programs.

This package contains an implementation of a high-quality splittable pseudorandom number generator. The generator is based on a cryptographic hash function built on top of the ThreeFish block cipher. See the paper "Splittable Pseudorandom Number Generators Using Cryptographic Hashing" by Claessen, Pałka for details and the rationale of the design.

This package introduces a type for paths upholding useful invariants.

This package provides the ability to adapt to locale conventions such as date and time formats.

The Glasgow Haskell Compiler (GHC) is a state-of-the-art compiler and interactive environment for the functional language Haskell.

The Glasgow Haskell Compiler (GHC) is a state-of-the-art compiler and interactive environment for the functional language Haskell.

The Glasgow Haskell Compiler (GHC) is a state-of-the-art compiler and interactive environment for the functional language Haskell.

The Glasgow Haskell Compiler (GHC) is a state-of-the-art compiler and interactive environment for the functional language Haskell.

The Glasgow Haskell Compiler (GHC) is a state-of-the-art compiler and interactive environment for the functional language Haskell.

The Glasgow Haskell Compiler (GHC) is a state-of-the-art compiler and interactive environment for the functional language Haskell.

The Glasgow Haskell Compiler (GHC) is a state-of-the-art compiler and interactive environment for the functional language Haskell.