awk を Homebrew, chocolatey, pacman, zypper でインストール

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• awk

プロジェクトの歴史

Awk was developed at Bell Labs by Alfred Aho, Brian Kernighan, and Peter Weinberger. The original paper, referenced from the official awk.dev site, describes awk as a pattern scanning and processing language; the 1985 technical report covered the expanded language that became the basis for the 1988 book.

The official awk.dev page for The AWK Programming Language, Second Edition says the first edition was written by Aho, Kernighan, and Weinberger in 1988, and points to the maintained source at github.com/onetrueawk/awk. That repository is the modern home for the implementation commonly called One True Awk.

採用の歴史

Awk spread through Unix culture because it sits between grep, sed, cut, and a full programming language. Its pattern-action model lets shell users write small data programs directly in pipelines without compiling anything or creating a larger script project.

The 2023 second edition of The AWK Programming Language and the continuing maintenance of the onetrueawk repository are part of awk's unusual afterlife: an old Unix language remains relevant because CSV-ish logs, columnar text, and quick data checks have not gone away.

使われ方

Typical usage is inline and pipeline-oriented: match records, split fields, accumulate counters, transform columns, and print reports. The man page and historical papers emphasize scanning input lines for patterns and executing actions for matching lines.

There is no project-specific config or credential file. Awk programs are supplied on the command line or in script files, and behavior is controlled by variables, input files, and environment inherited from the shell.

パッケージ好きにとっての重要性

For package nerds, awk is a tiny package with oversized cultural weight. It overlaps with POSIX awk, BWK awk, gawk, mawk, and system-provided /usr/bin/awk, so the packaging question is often which awk you are intentionally installing rather than whether awk exists at all.

Homebrew's awk formula is useful on macOS because it gives users a current One True Awk without replacing the system awk. That makes it attractive for people testing portability, newer awk fixes, or scripts that should stay close to the original language rather than GNU awk extensions.

タイムライン

• 1979: The original Awk paper appeared in Software: Practice and Experience.
• 1985: Bell Labs technical report CSTR 118 documented the expanded awk language.
• 1988: The first edition of The AWK Programming Language was published.
• 2023: The AWK Programming Language, Second Edition was published with an official companion site.
• 2026: awk.dev continues to point users to the maintained onetrueawk source repository.

Related projects

• GNU awk, or gawk, is the GNU Project implementation and has its own manual and release stream.
• mawk is another long-lived awk implementation focused on speed and small size.
• sed, grep, cut, perl, and shell are neighboring tools in the same Unix text-processing workflow.

ソース

• https://awk.dev/
• https://github.com/onetrueawk/awk
• https://github.com/onetrueawk/awk/blob/master/awk.1
• https://www.cs.princeton.edu/~bwk/
• source_facts.description
• source_facts.repo