I am currently getting started on exploring the Pi. In order to have a clean fall-back point, I'd like to copy an image of the SD flash card that came with the controller onto my MacBook. Haven't done it yet, but came across this post that explains the how-to:
https://computers.tutsplus.com/articles/how-to-clone-raspberry-pi-sd-cards-using-the-command-line-in-os-x--mac-59911
Thought that might help...
