From: "Jan E." <lists@...>
Date: 2012-08-13T03:35:44+09:00
Subject: Re: Delete a lines from a files

Guys, you really need to stop wanking off over your great Ruby skills 
and maybe post a solution that an average user can actually understand 
and integrate in his code.

We all know you are the greatest Ruby hackers on earth with the fanciest 
one-liners ever. But I think we're here to help and not to masturbate 
all day long.

What about a simple solution?

old_file = 'test.txt'
new_file = 'test2.txt'
File.open new_file, 'w' do |file|
  # loop over the lines of old_file and wrote those
  # not beginning with "john" to new_file
  File.foreach old_file do |line|
    file << line unless line.start_with? 'john'
  end
end

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