Chapter 12. The gawk Pattern Processing Language
IN THIS CHAPTER
getline: Controlling Input 554
Coprocess: Two-Way I/O 557
Getting Input from a Network 558
The gawk (GNU awk) utility is a pattern-scanning and processing language that searches one or more files to see whether they contain records (usually lines) that match specified patterns. It processes lines by performing actions, such as writing the record to standard output or incrementing a counter, each time it finds a match. As opposed to procedural languages, the gawk language is data driven: You describe the data you want to work with ...
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