Last night my sister-in-law managed to lock herself outside of her house and couldn’t wake up her family inside.

I jokingly sent her this xkcd cartoon. http://xkcd.com/530/

Then I started wondering if it was possible to set the system volume from the command line.

The answer: Yes! Yes it is.

sudo osascript -e "set Volume 10"

This is what I get for coding too much.