gawk
{GNU} {awk}. Gawk is a superset of standard awk and includes
some {Plan 9} features.
Version 2.15.3 by David Trueman and Arnold
Robbins of {Georgia Institute of Technology} is actively
developed. It has been ported to {Unix}, {MS-DOS},
{Macintosh}, and {Archimedes}.
Available by {FTP} from your nearest {GNU archive site}.
{Mac version
(ftp://archive.umich.edu/mac/utilities/developerhelps/macgawk2.11.cpt.h