jfruh writes: "Sam Muirhead, a New Zealand filmmaker living Berlin, will, on the 1st of August, begin an experiment in living an open source life for a year. But this is going way beyond just trading in his Mac for a Linux machine and Final Cut Pro for Novacut. He's also going to live in a house based on an open source design, and he notes that trying to develop and use some form of open source toilet paper will be an "interesting and possibly painful process.""
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals