[boneitis]

Much thanks for this. I've been struggling to grasp what's happening down in the engine room beneath me as I operate a modern Linux environment and only knew that there have been different waves of evolutions over the decades. I instead only see today's pretty deck up top, outside.

I'm only ten pages in, but that's mostly because the format and approach of this book is quickly yielding me tons of conversation fodder for ChatGPT4, where I've been endlessly asking it to clarify or point out holes in my mental model of everything I'm doing in the terminal, and still working out things such as why Backspace, Ctrl+H, Ctrl+/, Ctrl+?, Ctrl+-, and Ctrl+_ all together seem to have some overlap or differences in what's happening, depending on terminal contexts. I always had working notions of raw versus cooked sessions, the line discipline, etc., but I'm finding ways to play with the machinery with silly exercises that I otherwise couldn't have come up with.

For example, I just opened up three terminal windows:

  1) `man ascii`
  2) `nc -lvp 9001 | xxd -c1`
  3) `stty raw -echo; nc -nv 127.0.0.1 9001`

Then, reproducing the whole "Hex" column of the manpage, in order, using my keystrokes. And, observing the multi-byte payloads of some of the other keys. I feel like a kid again :)