None of these are accurate. The only shell trick that genuinely saves your sanity is fish. (/jk) Also, these are genuinely very basic tips. It's much more useful to learn about tmux, plugins (e.g., atuin), and useful commands like sed, grep, fd, awk, etc. Pretty much everything this article mentions becomes second nature in fish, leaving you to focus on more important things. Like learning neovim or emacs!