Nagios Support Forum

We are having issues where lot of core file are being generated and dumped in /var/core. I would like to know how can I set up alert so it alert whenever a core file exists in the /var/core. I see there is a check_file_age plugin it alerts if the file does not exist, I want to get an alert if file exists. Please let me.

Thanks in advance.

You will be better off using the folder_watch.pl plugin that ships with Nagios XI. You could run something like this:
You will get OK status from the plugin if the directory is empty, and will get CRITICAL if there is one or more files in it.