Comments on: Get HTTP Header Info from Web Sites Using curl

By: m

Sun, 10 Jul 2011 19:09:18 +0000

That sounds like a really interesting strategy, do you just check once for the server time and then schedule your check-in accordingly?

By: Tee Bone

Tee Bone — Sun, 10 Jul 2011 10:57:50 +0000

I use this method in a continuous loop when checking in online for Southwest flights. This allows me to obtain the servers exact time so I know when to hit the “Check-in” button to ensure I get a Group A boarding spot!

By: OSXDaily

OSXDaily — Fri, 08 Jul 2011 18:06:43 +0000

Post has been updated, thanks.

By: Ikke

Ikke — Fri, 08 Jul 2011 15:51:05 +0000

curl -I http://www.google.com

-I/–head
(HTTP/FTP/FILE) Fetch the HTTP-header only! HTTP-servers feature
the command HEAD which this uses to get nothing but the header
of a document. When used on a FTP or FILE file, curl displays
the file size and last modification time only.

By: nlo

nlo — Fri, 08 Jul 2011 15:22:54 +0000

Use a capital ‘i’ to display only the headers:

curl -I http://www.google.com
HTTP/1.1 200 OK
Date: Fri, 08 Jul 2011 15:22:39 GMT
Expires: -1
Cache-Control: private, max-age=0
Content-Type: text/html; charset=ISO-8859-1
Set-Cookie: PREF=ID=887fd41683939d85:FF=0:TM=1310138559:LM=1310138559:S=JC01XqwewmutBjaa; expires=Sun, 07-Jul-2013 15:22:39 GMT; path=/; domain=.google.com
Set-Cookie: NID=48=iRxY_rAFt4NCBGeRnAsqWZoxoXd6QuWODyBppeBLvmhYwBXLB2EPH-DyBns5hb4poiH2tz_WekVG0-KZ-QeWMccad3l2E443pEpctCerqrZjmzFvFp1014VANg2cBzV7; expires=Sat, 07-Jan-2012 15:22:39 GMT; path=/; domain=.google.com; HttpOnly
Server: gws
X-XSS-Protection: 1; mode=block
Transfer-Encoding: chunked

By: JasonBee

JasonBee — Fri, 08 Jul 2011 00:35:10 +0000

Too much text to scroll through? DUDE.

curl -i http://www.google.com | more

Handy for any occasion.

By: C Morris

C Morris — Thu, 07 Jul 2011 23:26:31 +0000

Nice one. I just need the status code, grep for HTTP and you will get that.