From: Askar Ka <tenzancode@...>
Date: 2011-05-01T16:57:47+09:00
Subject: Re: merging 2 csv files and sorting merged file

Here I post the answerI got from japanese mailing list,
which worked for me


out = File.open("file3.csv", "a+")
File.open("file2.csv", "r") do |file|
 file.each_line do |line|
  out.puts line # 出力
 end
end

OR

File.open("file3.csv", "a+") do |out|
 out.print IO.read('file2.csv')
end

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