A *real* difference

[Doug Gwyn]

In article <29138 at netnews.upenn.edu> kehoe at scotty.dccs.upenn.edu (Brendan Kehoe) writes:
> I need to take two text files and show the differences between 'em. Nope,
>not just diff them. What I want to do is point out the *exact* differences
>on each line. ...

A program called "redline" does approximately what you want.
Its source was printed in the "Wizard's Grabbag" column in the
July 1988 issue of UNIX World.