From: 7stud -- <bbxx789_05ss@...>
Date: 2007-11-10T06:10:47+09:00
Subject: Re: How to edit a file without loading it all into memory

Jonathan Dobbie wrote:
> 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.
> 

File.foreach("data.txt") do |line|
  #look for something in line
end

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