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Delete unique rows - optimize script

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http://www.unix.com – Hi all, I have the following input - the unique row key is 1st column Code: cat file.txt   [4] A response [1] C request [1] C response [3] D request [2] C request [2] C response [5] E request The desired output should be Code: [1] C request [1] C response [2] C request [2] C response Now i have implemented the below loop which does work but when the input file is bigger than 300 mb in size the whole process of removing the non-pairs rows takes ages since it needs to scan the whole file in a loop. Code: #/bin/bash req=$(mktemp) res=$(mktemp) new=$(mktemp) tmp=$(mk (HowTos)

ziyi's picture
Submitted by ziyi on 09/16/2012

Stories similar to Delete unique rows - optimize script

Although i tried multiple option i couldn't find a way to get the rigt ouput.

Say i have the following data

Code: cat file.txt   [1] C request [1:1] [1:4] [1:2] [1:3] [1] C response [2:3] [2] C request [2:1] [2:2] [2] C response The output should look like

Code: [1] C request [1:1] [1:2] [1:3] [1:4] [1] C response [2] C request [2:1] [2:2] [2:3] [2] C response I've tried

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here is the script:

PHP Code:

<?php

require_once 'HTTP/Request2.php';

$request = new HTTP_Request2($url = 'http://'.$argv[1].'/google', HTTP_Request2::METHOD_GET); try {     $response = $request->send();     if (200 == $respons

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