Hay Malik — no need to apologize! Code should be a lot easier to copy and paste than it is.
If you paste the code I link to toward the end of the post into a file, you can execute with python filename.py in your terminal. If you’re on a Mac, you already have Python. I’m not sure about Windows.
It probably won’t work without also installing the scapy library which you can install by typing pip install scapy. There is a chance that installing scapy might involve several more steps (e.g., you might also have to install pip!) but that depends on your system.