Missed (deleted) the start of the discussion. Not sure if it helps but: I juste made public my toolbox.txt file: https://ychaouche.github.io/toolbox.txt it is meant to be open in emacs, so that you can use its outliner mode and read only what you're interested in.
The relevant part is in "** command line tricks" (https://i.imgur.com/eqBjD0n.png) You can also take a look at https://ychaouche.github.io/bash.txt, but it is less of a "learn by doing" and more of a quick cheat sheet that helps you write or read bash code. I use these two files (and more) to organize and quickly access knowledge gems, so that once I learn something I need to remember 6 months from now, I just look at one of the files (or use my notes.search script, but that's another topic). Best, -- yassine -- sysadm +213-779 06 06 23 http://about.me/ychaouche Looking for side gigs.