Unix text utilities were designed primarily for programmers and admins, but here's a little secret: the utilities also work well for writers. Instead of using diff to see changes between programs, I often use diff utilities to see what has changed between one version of an article and another. A few weeks ago, I found dwdiff, and found it works even better.

The dwdiff utility, written by G.P. Halkes and distributed under the Open Software License 2.0, is a front end for diff that displays a word-by-word comparison of files.

The diff utility is great by itself, and fine for programmers, but not as useful for anyone who might want to see a word-by-word comparison, rather than line-by-line.

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