Effective AWK Programming
by Arnold D. Robbins
Number of pages: 314
This tutorial covers the entire spectrum of awk script development: From the basics of opening, searching, and transforming text files, to a comprehensive tutorial for regular expressions, to more advanced features like internetworking. The focus is on the practical side of creating and running awk scripts, and there's plenty of hands-on advice for installing and running today's awk (and gawk).
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by Steve Ambler, et al. - Wikibooks
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