Minishell

A shell, but mini.

About

Minishell is a project from the core curriculum at 42, where the goal is to implement a simple yet functional shell in C. This project focuses on understanding process creation, execution, and synchronization, as well as handling signals and user input efficiently.

The objective is to create a shell that can interpret and execute user commands while following the constraints imposed by the project (limited system functions, strict coding standards, etc.).

Features

• Command execution with arguments (similar to bash)
• Handling of | (pipes) for command chaining
• Redirections (<, >, >>, <<)
• Environment variables ($VAR expansion)
• Built-in commands (cd, echo, pwd, export, unset, env, exit)
• Signal handling (Ctrl+C, Ctrl+D, Ctrl+\)
• Error handling and status codes

Installation & Usage

Requirements

Ensure you have the following installed:

• GNU make
• GCC

Building the project

1. Clone this repository:

   git clone --recursive https://github.com/SifexPro/minishell_42

2. Navigate to the project directory:

   cd minishell

3. Compile the project:

   make

Running the shell

Once compiled, you can launch Minishell by running:

./minishell

To check for memory leaks, you can use Valgrind:

valgrind --suppressions=readline.supp --leak-check=full --show-leak-kinds=all --trace-children=yes --track-fds=yes

Notes

• This project follows the 42 norm, so expect some unconventional formatting.
• Certain standard library functions are restricted, making the implementation more challenging.
• While Minishell aims to be as close to Bash as possible, it is not a full-fledged shell replacement.
• For the full project subject click here.
• You can also check the correction sheet here.

@SifexPro & @PolEpie