I've been using a lot of key combinations and I wasn't aware of these two, and I really think these are awesome additions to handling the console. Thank you for showing me. I've only been using it for 22 years, but I haven't come across these :D

`CTRL + U and CTRL + K CTRL + W`

What I like about these key combinations is that they are kind of universal. A lot of programs on Linux and Mac support all these key combinations out of the box. And that's like a game changer in productivity, especially jumping to the start or the end of the line or jumping forward and backward per word is making working only with the keyboard so much more nice. And in editors together so AVY, you can even get a faster flow of jumping around.

Yes, those are shortcuts used in the GNU readline library, which many programs use whenever they need to read lines of text interactively from their operators. Notable examples are (most) shells, (most) interpreters, and tools like ftp, fzf, etc.

Notably, these keybindings are it's default map, which comes from the GNU's project editor Emacs. But, there is also the POSIX-compliant, but not-default, editing mode based on Bill Joy's visual editor (vi).