Automatic security updates for Drupal
To limit this script to only Drupal site, set WEB_ROOT to your Drupal root. And, to use on multiple sites, set WEB_ROOT at the shared folder for all Drupal sites.
cd ~ && git clone https://github.com/thenewgroup/auto-updates.git
Next, you must edit the variables at the top of the script to match your environment.
Add this to crontab -e to run every 60 minutes.
0 * * * * ~/auto-updates/security-updates.sh