🎓 Student Manager CLI (C)

A fast and simple command-line student management system written in pure C.

Manage student records, store them locally, and perform full CRUD operations — all from the terminal.

Built as a practice project for learning structs, file handling, input validation, and program flow in C.

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🚀 What It Does

• ➕ Add students
• 🗑 Delete students by ID
• ✏ Update student info
• 📋 List all students
• 💾 Auto-save to file
• 🔢 Auto-increment student IDs
• ✅ Safe input validation

All data is saved in:

students.txt

So nothing is lost when the program closes.

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🧠 How It Works

Each student record contains:

ID | Name | Surname | Age

Data is stored in CSV-like format:

1,Ali,Aliyev,20
2,Leyla,Mammadova,22

🛠 Tech Stack

• C (ANSI C)
• File I/O
• Structs
• Input validation
• Console interface

No external libraries.

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⚙ Compile & Run

Compile

gcc main.c -o student-manager

Run (Linux / macOS)

./student-manager

Run (Windows)

student-manager.exe

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📟 Program Menu

1 → Add student
2 → Delete student
3 → Update student
4 → Show all students
5 → Exit

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🧪 Validation Rules

• Names → letters only
• Age → 1 to 120
• Invalid input → rejected safely

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📌 Why This Project?

Practice core C programming concepts:

• memory & structs
• file persistence
• user input handling
• CRUD logic
• program architecture

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🔮 Possible Upgrades

• Search by name or ID
• Sorting
• Binary storage
• GUI version
• Database support
• Edit specific fields only