Kethinov writes: "Ars Technica has an insightful editorial criticizing enterprise IT backlash against Mozilla's new update policy. From the article: 'Now that Mozilla has released Firefox 5, version 4, just three months old, is no longer supported. Enterprise customers aren't very pleased with this decision, and are claiming it makes their testing burden impossible. We're not convinced: we think Mozilla's decision is the right one for the Web itself.'"
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals