Minishell - UNIX Command Interpreter

📋 Overview

Minishell is a custom implementation of a UNIX command interpreter based on TCSH. This project demonstrates deep understanding of system programming, process management, and UNIX shell architecture.

✨ Features

🎯 Core Features

• Command Execution - Full support for system commands via PATH
• Process Management - Fork, exec and child process handling
• Error Handling - Appropriate error messages and return codes
• Interactive Prompt - Clean and responsive user interface

🔧 Built-in Commands

• cd - Change directory navigation
• env - Display environment variables
• setenv - Set environment variables
• unsetenv - Remove environment variables
• exit - Clean shell exit

🚀 Installation & Usage

# Clone repository
git clone https://github.com/[your-username]/minishell.git
cd minishell

# Compile
make

# Run
./mysh

💡 Usage Examples

$> ls -la
$> cd /tmp
$> pwd
/tmp
$> setenv MY_VAR 42
$> env
[...]
MY_VAR=42
$> exit

🛠️ Technical Skills Demonstrated

• System Programming - Mastery of UNIX system calls (fork, execve, wait)
• Memory Management - Dynamic allocation and memory leak prevention
• Parsing - Command analysis and interpretation
• Error Handling - Robust implementation with comprehensive error cases
• Software Architecture - Modular and maintainable code

🎓 Academic Context

This project is part of the Epitech curriculum. It demonstrates:

• Deep understanding of UNIX mechanisms
• Ability to implement complex system features
• Rigorous approach to C development

📊 Performance & Quality

• ✅ Zero memory leaks (verified with Valgrind)
• ✅ Complete error handling
• ✅ Commented and documented code
• ✅ Unit tests included
• ✅ Epitech coding standards compliant

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Developed with passion by Romain Hartmann 🚀