From: 7stud -- <bbxx789_05ss@...>
Date: 2009-10-13T02:50:03+09:00
Subject: Re: find a print out a line

Collin Moore wrote:
> how would i write the output to a text file?  I tried the following, but 
> the output displays blank.
> 
> I tried a couple File.open attempts, but the output is blank.

fout = File.open("data2.txt", "w")

File.open("data.txt") do |f|
  f.each_line do |line|
    if line.include?("TestPhrase")
      fout.puts(line)
    end
  end
end

fout.close

...or

File.open("results.txt", "w") do |fout|
  IO.foreach("data.txt") do |line|
    if line.include?("TestPhrase")
      fout.puts line
    end
  end
end


If you use blocks with File.open(), then you don't need to manually 
close() the file--the block will do it automatically.


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