Overview

Minishell is a team project developed at 42 with my partner https://github.com/marine-i. The objective is to create a minimal Unix shell in C, reproducing the core behavior of bash.

This project focuses on understanding how a shell works internally, including process creation, command parsing, execution, and signal handling.

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Features

• Execution of external commands

• Built-in commands

• Pipes (|)

• Redirections:

  • Input (<)
  • Output (>)
  • Append (>>)
  • Heredoc (<<)

• Environment variable management

• Exit status handling

• Signal handling (Ctrl-C, Ctrl-D, Ctrl-\)

• Bash-like behavior (as required by the subject)

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Built-in Commands

Minishell implements the following built-ins:

• echo (with -n)
• cd
• pwd
• export
• unset
• env
• exit

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Compilation

To compile the project, run:

make

This will generate the minishell executable.

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Usage

Launch the shell with:

./minishell

You can then execute commands as you would in bash.

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Project Structure

• Parsing and tokenization of user input
• Execution management
• Built-in commands
• Signal handling
• Environment variables
• Memory management

(All implemented following the constraints of the 42 subject.)

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Technologies

• Language: C
• System calls: fork, execve, pipe, dup2, wait, signal, etc.
• Libraries: standard C library and allowed 42 functions

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