1. Common Environment

• WSL (Ubuntu 25.10)

2. READMEs

• Ruby
• Python

3. Source Codes

• Ruby
• Python

4. How to Use

In you terminal, provide the following 3 parameters via interactive user inputs.

• original_extension: The original extension of the files you would like to change(e.g., .jpg, .png, .rb, .py, .ts. .js etc.)
• target_extension: The target extension of the files you would like to switch to by the change(e.g., .jpg, .png, .rb, .py, .ts. .js etc.)
• mode: The operation is done as the execution mode with e and the dry_run mode without any option