I see. I've never used Diff::LCS personally, but I can tell that to get more info about what those diff objects contain you could try something like this: diffs = Diff::LCS.diff(@line,@line2) diffs.map(&:inspect) That will output the contents of the object to a string so you can see what's there. -- Josh http://iammrjoshua.com Mmcolli00 Mom wrote: > I want to get the difference. I need the difference to prove what is > changing in some files and not in others. I'll run it routinely to check > file content. -- Posted via http://www.ruby-forum.com/.