Basic File Handling (CLI)

A small Python program demonstrating reading a file and performing a simple find-and-replace operation with a menu-driven interface.

Features

• Validate file existence before operations
• Read and display full file content
• Replace all occurrences of a word with another
• Simple, robust error handling

Requirements

• Python 3.8+
• No external libraries required

Run

python3 file_handling.py

Usage

1. When prompted, enter the path to an existing text file.
2. Choose an option from the menu:
   • 1: Read file
   • 2: Find and replace word
   • 3: Exit

Example Session

Enter filename: demo.txt

--- File Handling Menu ---
1. Read File
2. Find and Replace Word
3. Exit
Enter your choice: 1

--- File Content ---
(contents shown here)
--------------------

Project Structure

• file_handling.py: Menu and file operations
• demo.txt: Example file (optional)