from the only-if-it-was-a-forest-moon-or-ice-moon dept.
MarkWhittington writes "Despite the fact that under President Barack Obama's space policy, Americans will not be going back to the moon any time soon, discussions are occurring about what, if any, military value the Earth's nearest neighbor has. Opinions, as can be expected, vary on the subject."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals