Cron job script to automatically notify you via email and telephone (using Twilio) if Apple's WWDC website changes. Originally written for Bash environments that have Sendmail installed.

gistfile1.txt

#!/bin/sh

CAN_COMPARE=0;
EMAIL="<list of email addresses separated with a space";

# If index.html exists, rename to index.html.old.
if [ -f index.html ];
then
        CAN_COMPARE=1;
        mv index.html index.html.old
fi

# Get latest wwdc HTML.
/usr/local/bin/wget --no-check-certificate http://developer.apple.com/wwdc

# Abort if 404, etc.
if [ ! -f index.html ];
then
  echo "Error checking WWDC.  Aborting...";
  exit;
fi

# Compare index.html to index.html.old.  If different, send out alert!
if [ $CAN_COMPARE -eq 1 ];
then
        if /usr/bin/diff index.html index.html.old >/dev/null ; then
                echo "No change";
        else
                echo "WWDC site has changed!";

                # Send out HTML email.
                (
                echo "Subject: WWDC site has changed!";
                echo "MIME-Version: 1.0";
                echo "Content-Type: text/html";
                echo "Content-Disposition: inline";
                cat index.html;
                ) | /usr/sbin/sendmail $EMAIL

                # Call cell using twilio.com.
                /usr/local/bin/curl -X POST https://api.twilio.com/<your Twilio key info>/Calls.json \
        -u <your Twilio user ID> \
        -d "From=+<your Twilio account phone number>" \
        -d "To=+<phone number you want to call>" \
        -d 'Url=http%3A%2F%2Ftwimlets.com%2Fecho%3FTwiml%3D%253CResponse%253E%253CSay%253E<URL encoded message>%2521%253C%252FSay%253E%253C%252FResponse%253E';
        fi
fi