How do I setup a cron job on OSX to launch a website in safari every 4 hours? How do I setup a cron job on OSX to launch a website in safari every 4 hours? I'm looking to have it open on top of every window. It's basically a reminder for staff.
0 0,4,8,12,16,20 * * * open "http://google.com/"


The 0,4,8,12,16,20 is every hour that the cron will run (in this example, every 4th hour).