Minishell - Command Parsing and Process Management

Minishell is a project about creating a simple custom UNIX shell in C, focusing on process control, file descriptor management, and command parsing.

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Table of contents

Features · Usage · License · Study Notes

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Features

• Lexical analysis and tokenization of command-line input

• Parsing and syntax interpretation for complex command structures, using an Abstract Syntax Tree (AST), represented as a binary tree

• Process creation and management for command execution

• Environment state management with variable expansion

• Inter-process communication via pipes

• Input/output redirection and here-document handling

• Pattern matching for dynamic filename expansion (wildcards)

• Conditional and grouped command execution with logical operators

• Quoting support (single and double) for argument grouping and literal treatment of special characters

• Signal handling for interactive session control

• Robust error handling and resource management

Usage

Setup and compilation

1. Clone repository

   git clone git@github.com:teresa-chow/42-minishell.git minishell

2. Go inside project directory and run make

   cd minishell
   make

3. Execute minishell program

   ./minishell

Testing

Test minishell against bash with tmux, while monitoring memleaks

make test

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Team

Carlos Teixeira @Carlos688940

Teresa Chow (me)

License

This work is published under the terms of MIT License.

Study notes

Further reading : Wiki

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