cURL – Display request headers and response headers
We can use curl -v or curl -verbose to display the request headers and response headers in the cURL command.
In the cURL response
- The
>lines arerequest headers. - The
<lines areresponse headers.
1. curl -v http://google.com
Try curl -v to the Google search engine.
Terminal
curl -v http://google.com
* Rebuilt URL to: http://google.com/
* Trying 172.217.166.142...
* TCP_NODELAY set
* Connected to google.com (172.217.166.142) port 80 (#0)
> GET / HTTP/1.1
> Host: google.com
> User-Agent: curl/7.55.1
> Accept: */*
>
< HTTP/1.1 301 Moved Permanently
< Location: http://www.google.com/
< Content-Type: text/html; charset=UTF-8
< Date: Wed, 26 May 2021 00:00:02 GMT
< Expires: Fri, 25 Jun 2021 00:00:02 GMT
< Cache-Control: public, max-age=2592000
< Server: gws
< Content-Length: 219
< X-XSS-Protection: 0
< X-Frame-Options: SAMEORIGIN
<
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
<TITLE>301 Moved</TITLE></HEAD><BODY>
<H1>301 Moved</H1>
The document has moved
<A HREF="http://www.google.com/">here</A>.
</BODY></HTML>
* Connection #0 to host google.com left intact
2. Display only response headers in cURL
We can use curl --head to display only the response header in the cURL command.
Terminal
curl --head http://google.com
HTTP/1.1 301 Moved Permanently
Location: http://www.google.com/
Content-Type: text/html; charset=UTF-8
Date: Wed, 26 May 2021 00:06:50 GMT
Expires: Fri, 25 Jun 2021 00:06:50 GMT
Cache-Control: public, max-age=2592000
Server: gws
Content-Length: 219
X-XSS-Protection: 0
X-Frame-Options: SAMEORIGIN
3. References
About Author
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It should be noted that –head is doing a HEAD request, which sometimes returns a different response (e.g. 405 method not allowed) than doing a GET and printing the headers
Hi do you know how can we get a perticular response header tag using verbose
The -o switch should be added and preferably dump the HTML content to /dev/null
Thank you so much, Mr. Mkyong.