cURL makes a web request and shows you the response body.
You can redirect the response body to /dev/null just like for many other programs. But if you do that, cURL will display some short information about the request you are making:
$ curl http://www.example.com/ > /dev/null
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 30865  100 30865    0     0   4793      0  0:00:06  0:00:06 --:--:-- 10199
If you want no output at all (for example for cronjobs), add the --silent switch:
curl --silent http://www.example.com/ > /dev/null
Posted by Arne Hartherz to makandra dev (2011-09-15 14:15)