Easily Extendible Shell (EESH)

Easily Extendible Shell is a custom shell written in C++, created as a learning project to explore the inner workings of shells and operating systems. It is designed with simplicity, extensibility, and educational value in mind.

Features

• Basic Command Execution: Run standard system commands with ease.
• Extensible Design: Add and modify functionality to suit your needs.
• Custom Built-Ins: Experiment with adding built-in commands to expand shell capabilities.
• Interactive and Scripted Modes: Use EES interactively or run pre-written scripts.
• Educational Focus: Learn about process management, I/O redirection, and more.

Getting Started

Prerequisites

• A C++17 or newer compiler (e.g., GCC, Clang)
• A Unix-like environment (Linux, macOS, WSL)
• Basic familiarity with command-line interfaces

Installation

• Clone the repository:

  git clone https://github.com/a-trumier/eesh
  cd easily-extendible-shell

• Compile the project:

  make

• Run the shell:

  ./eesh

Usage

Start the shell by running ./bin/eesh. Enter commands as you would in a standard shell. Some examples:

• Running a command:

  ls -l
  

• Exiting the shell:

  exit
  

Extending the Shell

To add new features or modify existing ones, simply edit the source files as needed.

For guidance, see the docs/ directory, which includes examples and explanations of the shell's internal structure.

Learning Goals

This project is intended to help myself explore:

• Process creation and management (e.g., fork(), exec())
• Parsing and interpreting user input
• I/O redirection and piping
• Error handling in system-level programming
• Modular and maintainable design in C++

Contributions

This is primarily a learning project, but contributions and suggestions are welcome. Feel free to fork the repository and submit a pull request or open an issue.

License

This project is released under the MIT License. See LICENSE for details.