This pipes to that, doing something and leading back to this & that.
If you ever struggled with an huge shell-script-command and you'd whish to have somebody (or something) that explains this huge command to you... I have a hint for you:
I've found this Page some minutes ago, and still love it!
As I've seen so many good hint's here on DEV.to, I'd like to share this one to you - hopefully it helps you a bit.