"Version 2.0 of ack, a grep like tool optimised for searching source
code introduces a more flexible identification system, better support
for ackrc configuration files and the ability to read the list of
files to be searched from stdin."
-- source: http://h-online.com/-1847056
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ
Ph. +64 (7) 858-5174