Hi there If you ever had to check the differences between two files, e.g., patching files, you most likely came across "diff". diff's output may be easy to parse for programs, but I personally prefer a graphical view of the differences side-by-side. I just came across the article "Linux GUI diff utilities a visual tour" covering quite a few tools that allow you to visually compare two files. More tools are mentioned in the comments (my personal favorite is KDiff3): http://www.handlewithlinux.com/Linux-GUI-diff-utilities-a-visual-tour Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cs.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174