📦 SKU Management System (C Language)

SKU Management System is a simple, file-based inventory management application written in C. This console-based program enables users to manage product stock and authenticate users without relying on a database — using .txt files for data storage.

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🚀 Features

🧑‍💼 User Authentication

• ✅ Sign Up: Register new users with a username and password.
• 🔐 Login: Secure access control using saved credentials (Register.txt).

📦 Product Management

• ➕ Add Product: Insert new products with Name, Category, Price, and Quantity.
• 🔍 Search Product: Find a product by its name.
• ✏️ Edit Product: Modify product price and stock.
• 🗑 Delete Product: Remove a product from the inventory.
• 📃 Display Stock: View all products in a neatly formatted table.

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🗂 File Structure

SKU-Management/ ├── main.c # Source code ├── ProductList.txt # Stores product data ├── Register.txt # Stores user login credentials └── README.md # Project documentation

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🛠 Technologies Used

• Language: C
• Compiler: GCC or any standard C compiler
• Platform: Windows (uses windows.h for Sleep() and system() calls)

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🧠 Concepts Practiced

• Structured programming using struct for Product data
• File handling: fopen, fscanf, fprintf, remove, rename
• Input safety: fgets() with newline trimming
• Basic user authentication system
• Console UI with formatted table output
• Safe buffer usage and validation

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📚 Use Case

This project is ideal for students learning:

• Structured Programming in C
• File handling techniques
• Console-based UI design
• CRUD operations without a database

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👨‍💻 Project Development

Course Project: Structured Programming Language (SPL)
Institution: United International University (UIU)

Developed by:

• Md. Abu Huraira Rahi
  B.Sc. in CSE, UIU

• Sanjana Farhin Astha
  B.Sc. in CSE, UIU