I think a nice workaround for this is to use something like a Jupyter Notebook (which also has bash support). You have all the commands pre-entered and you can

I think a nice workaround for this is to use something like a Jupyter Notebook (which also has bash support). You have all the commands pre-entered and you can step through as necessary. If you need to add something because of an audience question you can just insert a new cell. It looks live and in my opinion better than faffing in a terminal. You also have the bonus of being able to provide the notebook to your audience after the talk (or they can follow along with you).