How to display request headers with command line curl
Command line curl can display response header by using -D option, but I want to see what request header it is sending. How can I do that?
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A command like the one below will show three sections: request headers, response headers and data (separated by CRLF). It avoids technical information and syntactical noise added by curl.
curl -vs www.stackoverflow.com 2>&1 | sed '/^* /d; /bytes data]$/d; s/> //; s/< //'The command will produce the following output:
GET / HTTP/1.1 Host: www.stackoverflow.com User-Agent: curl/7.54.0 Accept: */* HTTP/1.1 301 Moved Permanently Content-Type: text/html; charset=UTF-8 Location: https://stackoverflow.com/ Content-Length: 149 Accept-Ranges: bytes Date: Wed, 16 Jan 2019 20:28:56 GMT Via: 1.1 varnish Connection: keep-alive X-Served-By: cache-bma1622-BMA X-Cache: MISS X-Cache-Hits: 0 X-Timer: S1547670537.588756,VS0,VE105 Vary: Fastly-SSL X-DNS-Prefetch-Control: off Set-Cookie: prov=e4b211f7-ae13-dad3-9720-167742a5dff8; domain=.stackoverflow.com; expires=Fri, 01-Jan-2055 00:00:00 GMT; path=/; HttpOnly <head><title>Document Moved</title></head> <body><h1>Object Moved</h1>This document may be found <a HREF="https://stackoverflow.com/">here</a></body>Description:
-vs- add headers (-v) but remove progress bar (-s)2>&1- combine stdout and stderr into single stdoutsed- edit response produced by curl using the commands below/^* /d- remove lines starting with '* ' (technical info)/bytes data]$/d- remove lines ending with 'bytes data]' (technical info)s/> //- remove '> ' prefixs/< //- remove '< ' prefix
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I had to overcome this problem myself, when debugging web applications.
-vis great, but a little too verbose for my tastes. This is the (bash-only) solution I came up with:curl -v http://example.com/ 2> >(sed '/^*/d')This works because the output from
-vis sent to stderr, not stdout. By redirecting this to a subshell, we cansedit to remove lines that start with*. Since the real output does not pass through the subshell, it is not affected. Using a subshell is a little heavy-handed, but it's the easiest way to redirect stderr to another command. (As I noted, I'm only using this for testing, so it works fine for me.)讨论(0) -
If you want more alternatives, You can try installing a Modern command line HTTP client like httpie which is available for most of the Operating Systems with package managers like brew, apt-get, pip, yum etc
eg:- For OSX
brew install httpieThen you can use it on command line with various options
http GET https://www.google.com讨论(0)
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