FTA: "If you learn to use Emacs, you will automatically learn the hotkeys and keybindings in hundreds of applications in Unix."
His point here is not to learn Emacs because it's a good editor, but because the keystrokes transfer to "hundreds of applications in Unix."
Which is true enough. In the (bash etc) shell you can change that to vi keystrokes with set -o vi, and you can change the behavior of those hundreds of applications (like mysql, e.g) by having a .inputrc file, but by default, lots of those apps use emacs keystrokes.
Use whatever editor you want, for whatever reason you want. His suggestion is worth considering, for the reason he states.
FTA: "If you learn to use Emacs, you will automatically learn the hotkeys and keybindings in hundreds of applications in Unix."
His point here is not to learn Emacs because it's a good editor, but because the keystrokes transfer to "hundreds of applications in Unix."
Which is true enough. In the (bash etc) shell you can change that to vi keystrokes with set -o vi, and you can change the behavior of those hundreds of applications (like mysql, e.g) by having a .inputrc file, but by default, lots of those apps use emacs keystrokes.
Use whatever editor you want, for whatever reason you want. His suggestion is worth considering, for the reason he states.