压制冗长输出，只显示Curl命令的输出

我使用以下Curl命令curl -i -X POST -H 'Content-type:application/json' some_url -d '{ "some":"json"}'并得到以下输出。

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"
    }]
}

我只想从Curl命令中获取JSON输出以进行进一步处理。我怎样才能实现呢。

注：Curl不会像这样显示JSON输出，我已经格式化了JSON块。