From: Robert Klemme <shortcutter@...>
Date: 2007-11-10T06:10:04+09:00
Subject: Re: How to edit a file without loading it all into memory

On 09.11.2007 21:51, Jonathan Dobbie wrote:
> I need to change the texture paths in maya files.  The lines are easy to
> find with grep, and I'm able to create the new line easily enough, but
> how can I do this without holding the entire file into memory?  The
> files can be hundreds of megabytes.

As you said: do it line by line.  This is the usual approach to this 
problem.  You might want to have a look at Ruby's command line options. 
  Basically you can do something like this for an inplace edit:

ruby -ni.bak -e 'your replacement code'

Kind regards

	robert