Custom Shell - Codecrafters.io Challenge

Welcome to my custom shell project, built as part of the Codecrafters.io shell challenge.

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Overview

This project is a custom Unix-like shell implemented in C++23, supporting features such as:

• Command parsing with quoting and escaping
• Built-in commands (echo, cd, pwd, history, exit, etc.)
• Command history with limited display and recall using arrow keys
• Input line editing and history navigation using the readline library
• Support for redirection and pipelines

The goal was to create a functional shell from scratch, with an emphasis on core Unix shell features and user-friendly command history management.

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How It Was Built

• Language: C++23
• Build System: CMake
• Libraries: GNU Readline for input handling and history
• Development: Leveraged AI tools (ChatGPT) extensively for coding assistance, debugging, and feature implementation.
• Testing: Validated against Codecrafters.io test suites for compliance with challenge specifications.

Note: This project was largely developed with the help of AI assistance to accelerate learning and development. I used this opportunity to explore system programming concepts while embracing modern developer tools.

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How to Build and Run Locally

Prerequisites

• C++ compiler (g++ 11+ or clang++)
• CMake 3.13+
• GNU Readline library (libreadline-dev on Debian/Ubuntu)
• make build tool

Build and Run steps

git clone <your-repo-url>
cd codecrafters-shell-cpp
./your_program.sh

Thank you for checking out this project!