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AWK programming language

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AWK is a computer pattern/action language that can be used for data analysis, manipulation and simple reporting. It is one of the early tools to appear in Version 3 UNIX and gained popularity as a way to add computational features to a UNIX pipeline. The name AWK is derived from the surnames of its authors -- Alfred V. Aho, Brian W. Kernighan, and Peter J. Weinberger[?].

A version of AWK is a standard feature of nearly every modern unix-like operating system available today. The most common versions are listed at [1] (http://cm.bell-labs.com/cm/cs/awkbook/).

Awk is an example of a programming language that extensively uses the string datatype, associative arrays (that is, arrays indexed by key strings), and regular expressions.

A free GNU version of awk is named gawk[?]. Documentation and downloads are available at [2] (http://www.gnu.org/software/gawk/gawk).

The power, terseness, and limitations of AWK programs and sed scripts inspired Larry Wall to write Perl.

All Wikipedia text is available under the terms of the GNU Free Documentation License

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