a bash script that i use to tell me to get back to work after a set number of minutes

timey

#!/bin/bash
if [ "$#" -ne 1 ]; then
	echo "usage: timey <number of minutes> &";
	exit;
fi

SECONDS=$(($1 * 60))
echo "Timey set for $1 minutes, which is $SECONDS seconds"
sleep $SECONDS
open -a "Google Chrome.app" https://media.giphy.com/media/yWh7b6fWA5rJm/giphy.gif 

For those, like me, who are wondering what -a is for, here is the answer:

     -a application
         Specifies the application to use for opening the file