curl -H "Host:www.vim26.com" -A "Mozilla/5.0" -i -s -w %{http_code}"\n" -o /dev/null "http://192.168.56.100/test.html" [root@python-123 ~]# curl -A "Mozilla/5.0" -i -s -w %{http_code}"\n" -o /dev/null "http://www.baidu.com" 200