From: Robert Klemme Date: 2011-11-11T21:15:24+09:00 Subject: Re: The fastest way to read files 2011/11/11 Noé Alejandro : > Basically read their content in order to remove blanks, punctuation > marks and lowercasing the text. I don't need to rewrite the information, > only read them and then close them. I don't understand: you wrote earlier you need to process pairs of files but all these operations mentioned above can be done on a single file. Plus, if you do not write the modified content anywhere what's the point of the exercise? That would only burn CPU and disk IO for nothing. Kind regards robert -- remember.guy do |as, often| as.you_can - without end http://blog.rubybestpractices.com/