donniebaseball23 writes: The rate at which hardware iterates in the smartphone and tablet space has allowed the technology to nearly catch up with consoles. It won't be long before we're all carrying small devices more powerful than the PS3, says Doom creator and id Software programming genius John Carmack. Speaking to IndustryGamers, he commented, "It’s unquestionable that within a very short time, we’re going to have portable cell phones that are more powerful than the current-gen consoles."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals