Thinkcloud writes: Businesses and organizations are putting data in Amazon's EC2 S3 storage service at an incredible rate. As of the end of 2011, there were 762 billion objects in Amazon S3. That leads to the comparison with Microsoft’s lead in PC software in the 1990s. Link to Original Source
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals