The one, true implementation of the AWK pattern-directed scanning and processing language, by one of the language's creators, Brian Kernighan. This is the version of awk described in "The AWK Programming Language", by Al Aho, Brian Kernighan, and Peter Weinberger (Addison-Wesley, 1988, ISBN 0-201-07981-X). It is also known as new awk, or nawk.