[h0h0h0]

I think what the author is missing is that the command line offers the programmer a world into writing code that doesn't require humans to use. Another way of saying it is that there is a whole class of programs out there that you really DONT want to have a HCI (human Interface) for.

Do i really need all of that tooling when one simple line in my cron will suffice? Do I really need a huge text editor in order to find and replace words when one sed line will do?

It's a class and style of programming that forces us to be efficient so we can get onto other things.