I have a simple script that I run as a background process (korn shell, AIX 4.3) that reads in IP addresses, PINGs them, writes failures to a file, waits 120 seconds, reads the "failure" file and pages me (using telalert) if the address fails both attempts. When someone reboots the system, of course, this script doesn't restart. I suppose I could solve this by scheduling a cron job every 2 minutes, 7x24 but this seems inefficient. I'd rather run some sort of cron job every 15 minutes to make sure that my PINGing script is running. Im looking for suggestions.