From: Cheyne Li <happy.go.lucky.clr@...>
Date: 2008-05-15T03:24:16+09:00
Subject: Re: Need help for finding difference between files

Michael Linfield wrote:
>> I wonder if I have to compare line by line or there is function in Ruby 
>> would do that for me.
> 
> file1 = File.readlines("f1.txt")
> file2 = File.readlines("f2.txt")
> 
> file1&file2
> #=> "I'm learning ruby."
> 
> The '&' symbol can be used to compare arrays, it will return any matches 
> between the 2.
> 
> Regards,
> 
> - Mac

Thanks man. I found that using "-" can find all differences

diff = file1 - file2
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