GAWK: Effective AWK Programming

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264 GAWK: Effective AWK Programming• Conrad Kwok, Scott Garfinkle, and Kent Williams did the initial ports to MS-DOSwith various versions of MSC.• Hal Peterson provided help in porting gawk to Cray systems.• Kai Uwe Rommel provided the initial port to OS/2 and its documentation.• Michal Jaegermann provided the port to Atari systems and its documentation. Hecontinues to provide portability checking with DEC Alpha systems, and has done a lotof work to make sure gawk works on non-32-bit systems.• Fred Fish provided the port to Amiga systems and its documentation. (With Fred’ssad passing, this is no longer supported.)• Scott Deifik currently maintains the MS-DOS port.• Juan Grigera provided a port to Windows32 systems.• Dr. Darrel Hankerson acts as coordinator for the various ports to different PC platformsand creates binary distributions for various PC operating systems. He is alsoinstrumental in keeping the documentation up to date for the various PC platforms.• Christos Zoulas provided the extension built-in function for dynamically adding newmodules.• Jürgen Kahrs contributed the initial version of the TCP/IP networking code and documentation,and motivated the inclusion of the ‘|&’ operator.• Stephen Davies provided the initial port to Tandem systems and its documentation.• Matthew Woehlke provided improvements for Tandem’s POSIX-compliant systems.Ralf Wildenhues now maintains this port.• Martin Brown provided the port to BeOS and its documentation.• Arno Peters did the initial work to convert gawk to use GNU Automake and gettext.• Alan J. Broder provided the initial version of the asort function as well as the codefor the new optional third argument to the match function.• Andreas Buening updated the gawk port for OS/2.• Isamu Hasegawa, of IBM in Japan, contributed support for multibyte characters.• Michael Benzinger contributed the initial code for switch statements.• Patrick T.J. McPhee contributed the code for dynamic loading in Windows32 environments.• Arnold Robbins has been working on gawk since 1988, at first helping David Trueman,and as the primary maintainer since around 1994.
Appendix B: Installing gawk 265Appendix B Installing gawkThis appendix provides instructions for installing gawk on the various platforms that aresupported by the developers. The primary developer supports GNU/Linux (and Unix),whereas the other ports are contributed. See Section B.5 [Reporting Problems and Bugs],page 280, for the electronic mail addresses of the people who did the respective ports.B.1 The gawk DistributionThis section describes how to get the gawk distribution, how to extract it, and then whatis in the various files and subdirectories.B.1.1 Getting the gawk DistributionThere are three ways to get GNU software:• Copy it from someone else who already has it.• Retrieve gawk from the Internet host ftp.gnu.org, in the directory ‘/gnu/gawk’. Bothanonymous ftp and http access are supported. If you have the wget program, you canuse a command like the following:wget http://ftp.gnu.org/gnu/gawk/gawk-3.1.8.tar.gzThe GNU software archive is mirrored around the world. The up-to-date list of mirrorsites is available from the main FSF web site. Try to use one of the mirrors; they will beless busy, and you can usually find one closer to your site.B.1.2 Extracting the Distributiongawk is distributed as a tar file compressed with the GNU Zip program, gzip.Once you have the distribution (for example, ‘gawk-3.1.8.tar.gz’), use gzip to expandthe file and then use tar to extract it. You can use the following pipeline to produce thegawk distribution:# Under System V, add ’o’ to the tar optionsgzip -d -c gawk-3.1.8.tar.gz | tar -xvpf -This creates a directory named ‘gawk-3.1.8’ in the current directory.The distribution file name is of the form ‘gawk-V.R.P.tar.gz’. The V represents themajor version of gawk, the R represents the current release of version V, and the P representsa patch level, meaning that minor bugs have been fixed in the release. The current patchlevel is 8, but when retrieving distributions, you should get the version with the highestversion, release, and patch level. (Note, however, that patch levels greater than or equal to80 denote “beta” or nonproduction software; you might not want to retrieve such a versionunless you don’t mind experimenting.) If you are not on a Unix system, you need to makeother arrangements for getting and extracting the gawk distribution. You should consult alocal expert.B.1.3 Contents of the gawk DistributionThe gawk distribution has a number of C source files, documentation files, subdirectories,and files related to the configuration process (see Section B.2 [Compiling and Installinggawk on Unix], page 268), as well as several subdirectories related to different non-Unixoperating systems:
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