记录下常用的curl命令选项

-X switch to :GET/POST or other HTTP methods

curl -X POST YOUR_URL

-v: show everything
-s: silent mode progress bar.

curl -v -X POST -d "fizz=buzz" http://requestb.in/tmy77qtm

-c: receive and store cookies from one request
-b: send the cookie jar

curl -c cookiejar.txt http://requestb.in/example
curl -b cookiejar.txt http://requestb.in/example

-H: send full header
-d: -d @data.txt or -d "name=value" or --data "name=value": send data 

curl -H "Accept: application/json" http://localhost/hello.php                #will return json
curl -H "Accept: text/html;q=0.5,application/json"    #return json as well
curl -v -X POST -H "Content-Type: application/json"  '{"link": "","name": "notebook"}'        #same as upper
curl -v -H "Content-Type:text/xml" /                        #will return xml

-L: (HTTP/HTTPS) If the server reports that the requested page has moved to a different location  (indicated  with  a  Location:
              header  and  a  3XX  response code), this option will make curl redo the request on the new place,就是能处理redirect,从github下载可以用curl -OkvL
-O: --remote-name： 远程文件名
-k: --insecure: allows curl to perform "insecure" SSL  connections  and  transfers

curl -OkvL

-I, --head:  (HTTP/FTP/FILE)  Fetch  the  HTTP-header  only