This directory contains scripts that sometimes come in handy doing presentations.

This is a wrapper around the Linux script command that invokes screen -xR (which spawns a new screen, or connects to an existing screen session if one is running).

This script requires the script and mktemp commands, which should be available for any contemporary distribution as installable packages — if they're not already installed by default.

This is another wrapper script that also starts screen, attaching to the same session as previously created by the screen.sh script, and exposes the terminal as a small embedded web server at http://localhost:4200/. You are then able to add this terminal to your screen, for the purpose of doing a live demo or anything else you might need a terminal for. To do so, simply include an inline frame in one of your slides, like so:

<iframe src="http://localhost:4200/"></iframe>

Alternatively, you can also include the terminal as a slide background, which has the added advantage that you can easily configure it to fill the full available screen.

<!-- .slide: data-background-iframe="http://localhost:4200/" data-background-size="contain" -->

If you're using the data-background-iframe option in your slides, you will not be able to type into your screen session from within the presentation. However, with the demo.sh script you can still include a terminal demo easily:

• Ahead of your presentation, start screen.sh and shellinabox.sh.

• In addition, start demo.sh. This will simply create yet another connection to the same screen session.

• Start your presentation. Hit s for the speaker console, then pull your main window to your projector screen — be sure to put your browser into full-screen mode —, and leave the speaker console (and your terminal application) on your laptop display.

• When you get to your demo slide, use Alt-Tab to switch to the terminal, and type from there. Your typing will be displayed nicely, and in full width, on the projector screen.

• When your demo is complete, use Alt-Tab again to switch back to the speaker console, and continue advancing through your slides.

If you are making your slides available after your presentation, you may want to include a screencast of your demo. To turn your recorded script into an asciicast, simply run asciinema.sh. It uses scriptreplay to play back your demo, and then uploads it to asciinema.org.