curl

全面教程https://curl.haxx.se/docs/httpscripting.html 简略说明https://gist.github.com/subfuzion/08c5d85437d5d4f00e58

参数

  • X： request
    • put和post使用application/json，application/x-www-form-urlencoded两种Content-Type，许多api同时支持两种格式，
    • curl缺省使用后一种格式，比较简单如-d "param1=value1&param2=value2" or -d @data.txt
    • json格式-d '{"key1":"value1", "key2":"value2"}' 或者 -d @data.json。
  • -#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.
  • -b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).
  • -c, --cookie-jar <file name> File to save response cookies to.
  • -d, --data <data> Send specified data in POST request. Details provided below.
  • -f, --fail Fail silently (don't output HTML error form if returned).
  • -F, --form <name=content> Submit form data.
  • -H, --header <header> Headers to supply with request-H "Content-Type: application/x-www-form-urlencoded", -H "Content-Type: application/json", -H “Host:localhost” -H “Content-Type:text/xml”.
  • -i, --include Include HTTP headers in the output.
  • -I, --head Fetch headers only.
  • -k, --insecure Allow insecure connections to succeed.
  • -L, --location Follow redirects.
  • -o, --output <file> Write output to . Can use --create-dirs in conjunction with this to create any directories specified in the -o path.
  • -O, --remote-name Write output to file named like the remote file (only writes to current directory).
  • -s, --silent Silent (quiet) mode. Use with -S to force it to show errors.
  • -v, --verbose Provide more information (useful for debugging).
  • -w, --write-out <format> Make curl display information on stdout after a completed transfer. See man page for more details on available variables. Convenient way to force curl to append a newline to output: -w "\n" (can add to ~/.curlrc).
  • -X, --request The request method to use.

任务举例

  • getcurl "http://www.hotmail.com/when/junk.cgi?birthyear=1905&press=OK"
 <form method="GET" action="junk.cgi">
 <input type=text name="birthyear">
 <input type=submit name=press value="OK">
 </form>
  • postcurl --data "birthyear=1905&press=%20OK%20" http://www.example.com/when.cgi或者curl --data-urlencode "name=I am Daniel" http://www.example.com
<form method="POST" action="junk.cgi">
 <input type=text name="birthyear">
 <input type=submit name=press value=" OK ">
 </form>
  • post上传文件curl --form upload=@localfilename --form press=OK [URL]
 <form method="POST" enctype='multipart/form-data' action="upload.cgi">
 <input type=file name=upload>
 <input type=submit name=press value="OK">
</form>
  • 隐藏字段curl --data "birthyear=1905&press=OK&person=daniel" [URL]
 <form method="POST" action="foobar.cgi">
 <input type=text name="birthyear">
 <input type=hidden name="person" value="daniel">
 <input type=submit name="press" value="OK">
</form>

  • put上传文件，服务器要能接受put流curl --upload-file uploadfile http://www.example.com/receive.cgi

  • 认证curl --user name:password http://www.example.com

  • 代理认证curl --proxy-user proxyuser:proxypassword curl.haxx.se

  • 加入referer -e或者--referer， curl --referer http://www.example.come http://www.example.com

  • 指定浏览器curl --user-agent "Mozilla/4.73 [en] (X11; U; Linux 2.2.15 i686)" [URL]

  • 带有重定向头响应的回复curl --location http://www.example.com

  • 发送cookiecurl --cookie "name=Daniel" http://www.example.com

  • 通过录制header存储cookiecurl --dump-header headers_and_cookies http://www.example.com,注意--cookie-jar是个更好的保存方法
  • curl内置有cookie解析引擎(--cookie参数启用)，使用先前的cookie重新链接curl --cookie stored_cookies_in_file http://www.example.com
  • curl --header "Host:" http://www.example.com去掉Header的Host

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