0-Shell

A minimalist Unix-like shell built in Rust — no bash, no sh, just pure system-level control.

---

About This Project

0-Shell is a lightweight, standalone shell inspired by tools like BusyBox, built for embedded Linux environments. It uses Rust to implement core shell commands from scratch, without relying on external programs.

---

What We Built

A fully working shell that:

• Displays an intelligent prompt: $ [branch] ~/current/path
• Features colored output similar to zsh with syntax highlighting
• Accepts and parses complex user input with advanced input parsing
• Executes built-in commands with proper argument handling
• Handles errors gracefully with informative messages
• Exits on exit or Ctrl+D

---

Shell Features

Smart Prompt & UI

• Dynamic prompt: Shows current directory and Git branch when available
• Colored output: Syntax highlighting for commands, files, and directories
• Zsh-like experience: Modern shell aesthetics with intuitive color coding
• Error highlighting: Clear visual feedback for invalid commands

System Integration

• Git awareness: Displays current branch in prompt
• Path intelligence: Smart directory navigation and display
• Signal handling: Proper Ctrl+D behavior

---

What You'll Learn

• How to use Rust's standard and low-level system libraries
• How to write your own versions of Unix commands
• How to build a modular command-execution loop
• Advanced terminal manipulation and ANSI color codes
• Input parsing algorithms and command-line argument processing
• Git integration and repository status detection
• Cross-platform terminal handling in Rust

---

Built-In Commands

Command	Description	Features
echo	Print text to stdout	Color support, escape sequences
cd	Change the current working directory	Smart path completion, ~ expansion
ls	List directory contents (-l, -a, -F)	Full color coding, file type indicators
pwd	Show the current working directory	Git-aware path display
cat	Display file contents	Syntax highlighting for code files
cp	Copy files	Progress indication, recursive copy
rm	Remove files or directories (-r flag)	Safe deletion with confirmation
mv	Move or rename files	Smart conflict resolution
mkdir	Create directories	Recursive creation with -p
clear	Clear the terminal screen	Complete screen refresh
exit	Exit the shell	Graceful cleanup and goodbye message

---

Getting Started

Clone the Repository

git clone https://github.com/aminehabchi/0-shell
cd 0-shell
cargo run -p terminal

---

Team Members & Responsibilities

Name	Assigned Commands	Additional Responsibilities
Ali Louhab	cat, rm, exit, mkdir	Error handling, file operations
Amine Habchi	mv, cp, pwd, ls	Input parsing, prompt system, colors
Abdelouahab Bouchik	cd, echo, clear	Terminal control, Git integration

---