Vending Machine

About the Project

This project is a complete simulation of a vending machine, implemented in Bash. The goal was to create an interactive terminal application that guides the user through a realistic purchasing process. The program manages a randomized inventory, supports three different payment methods, and returns the correct amount of change.

What Was the Task?

The task was to write a fully functional Bash script that implements fundamental programming concepts such as functions, loops, user input, and conditional logic. In addition, the program had to be user-friendly and handle invalid input reliably.

What I Learned

• Structured programming with Bash functions
• Handling user input and input validation
• Randomized logic and inventory management
• Simulation of payment methods (Cash, TWINT, PayPal)
• Error handling and clean program structure in Shell Scripts