使用curl从HTTP POST获取响应头
可以使用HTTP HEAD仅请求标题，作为curl(1)选项-I 。
$ curl -I /
冗长的HTML响应主体在命令行中是一种痛苦，所以我希望只获取标题作为POST请求的反馈。 但是，HEAD和POST是两种不同的方法。
如何获得curl以仅显示POST请求的响应头文件？
-D, --dump-header <file>
Write the protocol headers to the specified file.
This option is handy to use when you want to store the headers
that a HTTP site sends to you. Cookies from the headers could
then be read in a second curl invocation by using the -b,
--cookie option! The -c, --cookie-jar option is however a better
way to store cookies.
和
-S, --show-error
When used with -s, --silent, it makes curl show an error message if it fails.
和
-L/--location
(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. If used together with -i/--include or -I/--head, headers from all requested
pages will be shown. When authentication is used, curl only sends its credentials to the initial host. If a redirect takes curl to a different
host, it won’t be able to intercept the user+password. See also --location-trusted on how to change this. You can limit the amount of redirects to
follow by using the --max-redirs option.
When curl follows a redirect and the request is not a plain GET (for example POST or PUT), it will do the following request with a GET if the HTTP
response was 301, 302, or 303. If the response code was any other 3xx code, curl will re-send the following request using the same unmodified
method.
从手册页。 所以
curl -sSL -D - www.acooke.org -o /dev/null
遵循重定向，将头文件转储到标准输出并将数据发送到/ dev / null（这是一个GET，而不是POST，但是您可以使用POST完成相同的操作 - 只需添加您已用于POST数据的任何选项）
注意-在-D ，表示输出“文件”是stdout。
其他答案要求下载响应主体。 但是有一种方法可以创建POST请求，只会获取标题：
curl -s -I -X POST http://www.google.com
-I本身执行HEAD请求，该请求可以被-X POST覆盖以执行POST（或任何其他）请求，并且仍然只获取头数据。
对于长时间响应的机构（以及其他各种类似的情况），我使用的解决方案总是将管道less ，所以
curl -i https://api.github.com/users | less
要么
curl -s -D - https://api.github.com/users | less
将完成这项工作。
链接地址: http://www.djcxy.com/p/7093.html