Minishell

📖 Description

Minishell is a project that aims to recreate a minimal Unix shell.
It executes commands, manages processes, and implements a subset of bash features.
The goal is to understand the internal mechanisms of a command-line interpreter and practice low-level Unix/Linux concepts such as processes, pipes, and redirections.

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🚀 Features

• Execution of simple commands with arguments.
• Path resolution using the PATH environment variable.
• Implementation of the following builtins:
  • echo (with -n option)
  • cd
  • pwd
  • export
  • unset
  • env
  • exit
• Redirections:
  • < (input from file)
  • > (output to file, overwrite)
  • >> (output to file, append)
  • << (heredoc)
• Pipes (|) between commands.
• Signal handling (Ctrl-C, Ctrl-D, Ctrl-\).
• Environment variables management.
• Behavior closely matching bash for the specified cases.

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⚙️ Installation & Compilation

Clone the repository and compile with make:

git clone https://github.com/your-username/minishell.git
cd minishell
make

This will generate the minishell executable.

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▶️ Usage

Run the shell:

./minishell

Example session:

minishell$ echo "Hello World"
Hello World

minishell$ ls -l | grep minishell

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📂 Project Structure

.
├── Makefile        # Compilation rules
├── minishell.h     # Main header file
├── src/            # Source code
│   ├── main.c
│   ├── parser.c
│   ├── executor.c
│   ├── builtins/
│   └── ...
├── libft/          # Utility library
└── README.md

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🛠️ Technologies

• Language: C
• Coding style: Norminette (42 school standard)
• System calls: fork, execve, pipe, dup2, signal, waitpid, etc.

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👥 Authors

• [Your Name]
• [Your partner’s name, if applicable]

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✅ Learning Goals

• Understand how a shell works internally.
• Practice system programming in C.
• Improve memory management and pointer handling.
• Work with processes and inter-process communication.