===bwk awk=== The original implementation of awk. Named after the initials of its primary author, Brian W. Kernighan. Bwk awk is still bundled in several operating systems, including FreeBSD, NetBSD, OpenBSD and Darwin (MacOS X). It is considered the reference implementation and is described in the book "The AWK Programming Language" published in 1988, (ISBN 0-201-07981-X). The latest source (and Windows binary) is available at [[http://www.cs.princeton.edu/~bwk/btl.mirror/index.html]]. Many historical versions are available in the git repository at [[https://github.com/danfuzz/one-true-awk]].
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