[plug] Need an app that compares two text files and displays the differences?

[Timothy White]

On 4/20/05, Senectus . <senectus at gmail.com> wrote:
> I have two rather long text files that are dumps from a Netscreen
> firewall, I want to run the two of them through an app that compares
> the two and tells me what is different between them..
> Anyone know an app that does that?
diff? gvimdiff?
What kinda of differences are you looking for?

Tim