Ruby Scripting Toolkit

This repository showcases a series of Ruby-based scripting projects focused on command-line utilities, class extensions, encryption algorithms, and object-oriented programming.

Each script demonstrates practical problem-solving and clean, modular code design.

---

📂 Project Overview

🔧 array.rb

Extends Ruby’s built-in Array class:

• Custom [] method returns '\0' for out-of-bounds access.
• Enhanced map method supports optional step or range selection.

🧪 rgrep.rb

Command-line grep-like utility with multiple options:

• -w word search
• -p regex match (default)
• -v inverse match
• -c count matching lines
• -m extract matching fragments

Includes:

• test.txt sample input
• test_rgrep.sh script for automated test runs
• Screenshot: Problem02-Terminal-Screenshot.png

🔢 pascal_triangle.rb

Implements a cascading sum encryption algorithm:

• Each iteration reduces a digit sequence
• Final output is a 2-digit encrypted result

🚙 vehicle.rb

OOP hierarchy simulating vehicles:

• Vehicle, MyCar, MyTruck, and ElectricCar classes
• Modules: Towable and SelfDriving
• Functionality includes speed control, repainting, towing, mileage, and battery management

---

▶️ Usage

ruby array.rb
ruby rgrep.rb test.txt -w road
ruby pascal_triangle.rb
ruby vehicle.rb
bash test_rgrep.sh