Mac OS X Terminal: Map option+delete to “backward delete word”

Enable option key as meta key

  1. Go to Terminal > Preferences > Profiles > Keyboard
  2. Check Use option key as meta key.

Image

On macOS High Sierra 10.13.6, captured on October 23, 2018.

Illustration of the window for toggling option key as meta key

Notes

Many applications (including bash and tcsh) treat Meta-Delete as “backward delete word.”

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