Minishell

This project consists of creating a simple shell, similar to a minimalist version of Bash. It is part of the curriculum at École 42, focused on understanding how a shell works at a low level, including process control, file descriptors, and terminal interactions.

💡 About the project

Minishell was developed as a practical exercise in system programming. The goal was to implement a basic command-line interpreter capable of parsing and executing user commands.

This project provided hands-on experience with:

• Process creation and management (fork, execve, waitpid)
• File descriptor manipulation (dup, pipe, redirections)
• Signal handling (e.g., SIGINT, SIGQUIT)
• Parsing and tokenization of user input
• Environment variable management

🛠️ Usage

Requirements

• GNU/Linux environment
• Makefile compatible build system
• GCC compiler

Build

make

Run

./minishell

📋 Features

• Execution of binary programs (with absolute or relative paths)
• PATH resolution for commands
• Redirections (>, >>, <)
• Pipes (|)
• Environment variables (env, export, unset)
• Built-in commands:
  • echo
  • cd
  • pwd
  • export
  • unset
  • env
  • exit
• Signal management (handling Ctrl+C, Ctrl+, etc.)
• Error handling for invalid commands, syntax errors, and system errors

👥 Authors:

caesar
rodrigo

📸 Demonstration