Hak5
What is a heredoc? Here Documents Explained | Linux Terminal 201 - HakTip 179
https://youtube.com/watch?v=Ae4p7rgUo28
Shannon explains how to use heredocs in the context of a shell script.
How To Use Shell Functions | Linux Terminal 201 - HakTip 180
https://youtube.com/watch?v=z6HUNfYViQw
Shannon explains how to use shell functions in the context of a shell script.