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I would reccomend using Tie::File for this.
Frankly, rewriting the whole file to change just a few lines is a problematic situation with flat files. Although I would prefer some sort of database backend, Tie::File gives a database, without any necessary fields, etc.

You can read about Tie::File (Writen by Dominus) here, or go to cpan and download the module. Here's an example of how to edit a file from his article.
tie @lines, 'Tie::File', 'file' or die ...; for (@lines) { # Do your thing, only for lines that match this regex, or ar +e records that need to be changed. } untie @lines;
It should be quicker.
Gyan Kapur
gyan.kapur@rhhllp.com

In reply to Re: Tie::File by Revelation
in thread Performance Question by Jarinn

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