💰 Expense Tracker (C Language)

A simple command-line Expense Tracker written in C, designed to help users manage and track their daily expenses.
It supports adding, viewing, deleting, filtering, generating summaries, setting a monthly budget, and creating automatic backups.

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📜 Features

• Add Expense with description, amount, date, and category
• View All Expenses in a tabular format
• Delete Expense by selecting its index
• Filter by category or date
• Summary Report (total & average expenses)
• Set Monthly Budget with warnings if exceeded
• Save & Load expenses from a file
• Automatic Backup on every save

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🗂️ File Structure

• expense_tracker.c → Main source code
• expenses_data.txt → Data file storing expenses
• backups/ → Folder storing timestamped backups (created automatically)

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📦 How to Compile & Run

Compile

gcc expense_tracker.c -o expense_tracker

### **Run**
./expense_tracker


###Sample output

========= Expense Tracker =========
1. Add Expense
2. View All Expenses
3. Delete an Expense
4. Filter by Category
5. Filter by Date
6. Display Summary
7. Save & Backup
8. Set Monthly Budget
9. Exit
Enter choice:

🛠️ Requirements
GCC Compiler (or any C compiler)

Basic terminal/command prompt knowledge