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As you have already seen, each @command{awk} statement consists of a pattern with an associated action. This major node describes how you build patterns and actions, what kinds of things you can do within actions, and @command{awk}'s built-in variables.
The pattern-action rules and the statements available for use within actions form the core of @command{awk} programming. In a sense, everything covered up to here has been the foundation that programs are built on top of. Now it's time to start building something useful.
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