How to send a Head Http request from command line Post: 302181326

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Top Forums UNIX for Dummies Questions & Answers How to send a Head Http request from command line Post 302181326 by darkling235 on Wednesday 2nd of April 2008 04:03:22 PM

04-02-2008

Registered User

How to send a Head Http request from command line

Ok. I'm testing a new program component that is supposed to speed up our pipeline on the server. What it does is take in HEAD requests and shuffle them off to a different pipeline that is specially designed to handle HEAD requests quickly. The functionality works but now comes the question: how much does it speed things up? Or does it speed things up at all?

To originally test this I SSHed onto the server I wanted to test and telneted from there back to the box itself. This let me verify that the component handled the request correctly. I sent the telnet from the server itself to eliminate the http travel time as much as possible.

Now I need to time how long it takes for a request to work through the pipeline. I've been trying to

time telnet myserver

but entering in user information like the host and body information makes the time erratic

I.E.
HEAD /csmonitor/web/guest/world HTTP/1.1
host: preprod.dev.csmonitor.com

So I'm trying to find something I can script to give me a more accurate idea of the time.
The Expect program requires TLC which we don't really want to install so can anyone recommend a command line argument I can use to send Head requests? One I can script so I can use the time command?

Any help would be great. Thanks

darkling235

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LEARN ABOUT MOJAVE

curlmopt_max_pipeline_length

CURLMOPT_MAX_PIPELINE_LENGTH(3) 			     curl_multi_setopt options				   CURLMOPT_MAX_PIPELINE_LENGTH(3)

NAME

       CURLMOPT_MAX_PIPELINE_LENGTH - maximum number of requests in a pipeline

SYNOPSIS

       #include <curl/curl.h>

       CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_MAX_PIPELINE_LENGTH, long max);

DESCRIPTION

       Pass a long. The set max number will be used as the maximum amount of outstanding requests in an HTTP/1.1 pipelined connection. This option
       is only used for HTTP/1.1 pipelining, not for HTTP/2 multiplexing.

       When this limit is reached, libcurl will use another connection to the same  host  (see	CURLMOPT_MAX_HOST_CONNECTIONS(3)),  or	queue  the
       request	until  one  of	the  pipelines	to  the  host is ready to accept a request.  Thus, the total number of requests in-flight is CURL-
       MOPT_MAX_HOST_CONNECTIONS(3) * CURLMOPT_MAX_PIPELINE_LENGTH(3).

DEFAULT

       5

PROTOCOLS

       HTTP(S)

EXAMPLE

       TODO

AVAILABILITY

       Added in 7.30.0

RETURN VALUE

       Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.

SEE ALSO

       CURLMOPT_PIPELINING(3), CURLMOPT_MAX_HOST_CONNECTIONS(3),

libcurl 7.54.0							 October 27, 2016				   CURLMOPT_MAX_PIPELINE_LENGTH(3)

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