我正在使用curl命令，就像下面的curl -i -X POST -H 'Content-type:application/json' some_url -d '{ "some":"json"}'一样，并得到如下输出。

HTTP/1.1 200 OK
Server: openresty
Date: Tue, 03 Apr 2018 14:28:38 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 3925
Connection: keep-alive
X-Powered-By: PHP/5.5.9-1ubuntu4.23
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: Content-Type
Access-Control-Allow-Methods: POST
Access-Control-Max-Age: 1000

{
    "jsonrpc": "2.0",
    "result": [{
        "hostid": "10225",
        "proxy_hostid": "0",
        "host": "sgw-2585-bus",
        "status": "0"
    }]
}

字符串
我只是想要curl命令的json输出，以便进一步处理。我如何才能实现它？
注意：curl不会像这样显示json输出，我已经格式化了json块。