timelapse

#!/bin/bash
# timelapse
#
# Records a sequence of screencaptures at regular intervals on Mac OS
# X.  Can also record using webcam if you have isightcapture
# installed.
#
# http://www.intergalactic.de/pages/iSight.html
#
# Shane Celis 

while true; do
    timestamp=$(date '+%Y-%m-%dT%H:%M:%S');
    echo "Capturing screen at $timestamp."
    # For one screen:
    screencapture -x "screen1-$timestamp.png";
    # For two screens:
#    screencapture -x "screen1-$timestamp.png" "screen2-$timestamp.png";

    # If you have a webcam, you might want to capture that too.
#    isightcapture "isight-$timestamp.png";
    sleep 60;
done;

# After it's finished, you probably want to play around with image
# magick to stitch the images together and create a movie.
# Specifically look at the tools montage and convert.