From: Joshua Abbott <joshnabbott@...>
Date: 2008-12-10T05:51:18+09:00
Subject: Re: compare 2 text files - check for difference - Please hel

Are you wanting to get the actual differences, or just know if they are 
different?

-- Josh
http://iammrjoshua.com

Mmcolli00 Mom wrote:
> require 'diff/lcs/Array'
> 
> file = File.open("1.txt",'r')
>  @row = {}
>     file.each_line do |@line|
>       key, val = @line.chomp.split(",",0)
>       @row[key] = val
>   end
> 
>  file2 = File.open("2.txt",'r')
>  @row2 = {}
>     file2.each_line do |@line2|
>       key2, val2 = @line2.chomp.split(",",0)
>       @row2[key2] = val2
>   end
> 
> 
> puts diffs = Diff::LCS.diff(@line,@line2)
> 
> testing files contents...
> 1.txt  2.txt
> 1,2    1,2,3
> 
> outputed when files different as above:
> #<Diff::LCS::Change:0x2e5d95c>
> #<Diff::LCS::Change:0x2e5da60>
> #<Diff::LCS::Change:0x2e5d90c>
> 
> outputed when files are identicial
> #<Diff::LCS::Change:0x2e5da88>
> 
> I want to be able to say that 2.txt contained '3' therefore the file was 
> not the same on that line. Thanks. MC

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