Actually, I haven't found where I can report again a very bad tutorial, that I reported a year ago and no actions were done. Unfortunately, I opened this manual again, but didn't recognize it, and now I spent a day to figure out that this freaking loop (the last one) doesn't work in my code. so, maybe someone could review my comment (that I posted last year) and attach/post it to this manual, or just block the manual https://www.digitalocean.com/community/tutorials/if-else-in-shell-scripts