[root@pccc03 tmp]# curl thl-cmk.hopto.org -o /dev/null -w %{json}
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 210 100 210 0 0 1788 0 --:–:-- --:–:-- --:–:-- 1794
curl: unknown --write-out variable: ‘json’
[root@pccc03 tmp]#