You often may need to compare one version of a file to an earlier one or check one file against a reference file. Linux provides several tools for doing this ...

I want to compare the files present in two filesystems or directory trees, and to list which files are present in one tree but not in the other. I don't think 'diff -r' can be used to directly compare ...

I often find myself needing to diff directories of files. I've tried using FileMerge, but it is horribly broken for my application because often these files I need to diff have different line endings, ...

Programmers have used diff utilities for years. In brief: A diff utility lets you input two files, then the program calculates exactly where the files contain changes. Diffing is the basis of such ...