linux curl 测试 websocket 服务

如下

curl -i -N -H "Connection: Upgrade" -H "Upgrade: websocket" -H "Host: echo.websocket.org" -H "Origin: http://www.websocket.org" http://echo.websocket.org

或者

curl --include 
     --no-buffer 
     --header "Connection: Upgrade" 
     --header "Upgrade: websocket" 
     --header "Host: example.com:80" 
     --header "Origin: http://example.com:80" 
     --header "Sec-WebSocket-Key: SGVsbG8sIHdvcmxkIQ==" 
     --header "Sec-WebSocket-Version: 13" 
     http://example.com:80/