🐚 minishell

A minimal Unix shell implementation built in C, replicating key behavior of Bash. Developed for educational purposes.

✅ Features

• Command execution with arguments (e.g., ls -l, echo hello)
• Built-in commands:
  • cd, echo, pwd, exit, export, unset, env
• Input parsing with support for:
  • Quoting (', ")
  • Environment variable expansion ($VAR)
  • Redirections (>, >>, <, <<)
  • Pipes (|)
• Signal handling (Ctrl+C, Ctrl+, Ctrl+D)
• Error handling with descriptive messages
• No memory leaks (checked with valgrind)

🛠️ Requirements

• Unix-based OS (Linux or macOS)
• cc compiler
• make

▶️ Usage

./minishell

You can now enter commands like:

ls -l | grep ".c" > files.txt
cat < files.txt

Use exit to quit the shell.

📁 Project Structure

minishell/
├── src/                # Source files
├── inc/                # Header files
├── mylib/              # Custom standard library functions
├── Makefile
└── README.md

🧪 Testing

• Run valgrind ./minishell to check for memory leaks
• Compare behavior with /bin/bash for edge cases

📚 Reference

This project follows the specifications from the 42 School minishell subject. It mimics Bash 5.1 behavior wherever possible.