🐚 HaSh - Hari's Shell

HaSh (Hari's Shell) is a custom POSIX-compliant shell built from scratch in Java as a learning project. It provides an interactive command-line experience with essential shell functionalities, inspired by Unix-like shells. The goal of this project is to explore system programming concepts, shell internals, and command parsing while gradually adding new features.

✨ Features

✅ Built-in Commands: Includes exit, type, echo, cd, and pwd.

✅ POSIX-style Quoting & Escaping: Supports single quotes, double quotes, and backslash escaping.

✅ Redirection Operators: Handles input/output redirection for seamless command execution.

✅ Auto-Completion: Suggests commands on tab press for a smoother experience.

✅ External Program Execution: Runs system commands and executables like ls, cat, etc.

✅ Shell Command Parsing: Processes complex shell commands with arguments and options.

✅ REPL (Read-Eval-Print Loop): Interactive session for executing multiple commands.

✅ Maven Build: Easily compile and run with Maven.

🚀 Planned Features:

🔹 Auto Completion for paths

🔹 Command History

🔹 Piping (|)

🔹 Job Control (background processes)

🔹 More Built-in Utilities

🛠 Installation

🏃 Run with Prebuilt JAR (Recommended)

1. Download the latest hash.jar from the Releases section.

2. Open a terminal and run:

java -jar hash.jar

🏗️ Build from Source

If you want to modify or contribute:

git clone https://github.com/hari4742/HaSh.git
cd HaSh
mvn package
java -jar target/hash.jar

📺 Preview

When you launch HaSh, you’ll be greeted with:

 _    _        _____ _
| |  | |      / ____| |
| |__| | __ _| (___ | |__
|  __  |/ _` |\___ \| '_ \
| |  | | (_| |____) | | | |
|_|  |_|\__,_|_____/|_| |_|

Welcome to HaSh - Hari's Shell!

🙌 Acknowledgments

• This project is build with guidance of codecrafters as part of the "Build Your Own Shell" Challenge.

• Special thanks to CodeCrafters. Learn more about them here.