bettercap's interactive sessions can be scripted with .cap files, or caplets, the following are a few basic examples, look at this repo for more.
To install / update the caplets on your computer:
git clone https://github.com/bettercap/caplets.git
cd caplets
sudo make install
Or, from within bettercap:
> caplets.update
Refer to the official documentation and to any caplet specific README for more info.
bettercap is made with ♥ by the dev team and it's released under the GPL 3 license.