AWK

When faced with a problem, some people say 'Let's use AWK.' Now they have two problems. 
--> Zalman Stern 

Pages:
http://uts.cc.utexas.edu/~churchh/awk-perl.html
http://www.cs.stir.ac.uk/~jsd/awk.html
http://nmt.edu/tcc/help/lang/awk.html

                                               Gawk

Pages:
http://csugrad.cs.vt.edu/manuals/gawk/gawk_toc.html
http://www.cl.cam.ac.uk/texinfodoc/gawk_toc.html
http://www.cs.utah.edu/csinfo/texinfo/gawk/gawk_toc.html
http://kite.dcs.king.ac.uk:88/info/gawk

                                                1. MacGawk 

VERSIONS - UPDATES: 
2.11  (09-29-90)
2.11  Patch 4  (08-17-91)                               

README:
"This is GNU awk, gawk, for the Macintosh. For those who don’t know, GNU stands for GNU’s Not UNIX, an as-yet unfinished operating system, and is the primary goal of the Free Software Foundation." 

AUTHOR:
mac port:
Tom Maszerowski
    
COPYRIGHT:
(C) 1989, 1991, 1992, Free Software Foundation.

TYPE:
Freeware (:GNUware)

INTERNET SITES:
ftp://ftp.uwtc.washington.edu/pub/Mac/Programming/
ftp://ftp.geophys.hokudai.ac.jp/pub/mac/util/Gawk/

                                                2. Gawk (MPW)

VERSION - UPDATE: 2.11.1r3  (06-08-91)                                   

README:
"To compile the source, you need MPW 3.0 or later and MPW C 3.0 or later. If you want to make changes to "awk.y", you also need bison or something equivalent." 

AUTHOR: 
mac port:
Matthias Neeracher
    
COPYRIGHT:
(C) 1989, 1991, 1992, Free Software Foundation.

TYPE:
Freeware

INTERNET SITES:
ftp://ftp.fu-berlin.de/mac/lang/MPW/
ftp://ftp.cs.tu-berlin.de/pub/mac/lang/MPW/
ftp://ftp.switch.ch/software/mac/src/mpw_c/

                                                3. jgawk

VERSION - UPDATE: 2.15.2+1.0+1.2.2.1  (03-14-94)                              

README:-

AUTHOR:
mac port
YAMASHITA Iwao
    
COPYRIGHT:
Japanized Gnu Awk (jgawk) 2.15.2 + 1.0:
(C) 1989, 1991, 1992, Free Software Foundation.
jgawk for Macintosh: 
(C) 1993, 1994 YAMASHITA Iwao

TYPE:
Freeware (:GNUware)

INTERNET SITES:
Info-Mac

Other sites (vv. 2.11.1+3.0+1.0 & 2.15.2+1.0+1.1):
ftp://ftp.geophys.hokudai.ac.jp/pub/mac/util/jgawk/