mawk
a pattern scanning and text processing language
Mawk is an interpreter for the AWK Programming Language. The AWK
language is useful for manipulation of data files, text retrieval and
processing, and for prototyping and experimenting with algorithms. Mawk
is a new awk meaning it implements the AWK language as defined in Aho,
Kernighan and Weinberger, The AWK Programming Language, Addison-Wesley
Publishing, 1988. (Hereafter referred to as the AWK book.) Mawk conforms
to the POSIX 1003.2 (draft 11.3) definition of the AWK language
which contains a few features not described in the AWK book, and mawk
provides a small number of extensions.
Mawk is smaller and much faster than gawk. It has some compile-time
limits such as NF = 32767 and sprintf buffer = 1020.