How to disable touchscreen on Chromebook easily?

To disable the touchscreen on a Chromebook:
  1. Press Search + Alt + T to open the Crosh (Chrome Shell).
  2. Type shell and press Enter.
  3. Type sudo su and press Enter.
  4. Then type: echo 0>/sys/class/input/eventX/enabled (replace X with your touchscreen event number).
Note: This may not work on all models, and a restart may re-enable it.
 
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