I'd like to do a health check of a service by calling a specific url on it. Feels like the simplest solution would be to use cron to do the check every minute or so. In case of errors, cron sends me an email.
I tried using cUrl for this but I can't get it to output messages only on errors. If I try to direct output to /dev/null, it prints out progress report.
% Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 5559 100 5559 0 0 100k 0 --:--:-- --:--:-- --:--:-- 106k
I tried looking through the curl options but I just can't find anything to suit the situation where you want it to be silent on success but make noise on errors.
Is there a way to make curl do what I want or is there some other tool I should be looking at?