(gawk.info.gz) Language History
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Appendix A The Evolution of the `awk' Language
**********************************************
This Info file describes the GNU implementation of `awk', which follows
the POSIX specification. Many long-time `awk' users learned `awk'
programming with the original `awk' implementation in Version 7 Unix.
(This implementation was the basis for `awk' in Berkeley Unix, through
4.3-Reno. Subsequent versions of Berkeley Unix, and some systems
derived from 4.4BSD-Lite, use various versions of `gawk' for their
`awk'.) This major node briefly describes the evolution of the `awk'
language, with cross-references to other parts of the Info file where
you can find more information.
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* V7/SVR3.1 The major changes between V7 and System V
Release 3.1.
* SVR4 Minor changes between System V Releases 3.1
and 4.
* POSIX New features from the POSIX standard.
* BTL New features from Brian Kernighan's version of
`awk'.
* POSIX/GNU The extensions in `gawk' not in POSIX
`awk'.
* Common Extensions Common Extensions Summary.
* Ranges and Locales How locales used to affect regexp ranges.
* Contributors The major contributors to `gawk'.
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