(gawk.info)Patterns and Actions


Patterns, Actions, and Variables
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   As you have already seen, each `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 `awk''s built-in variables.

   The pattern-action rules and the statements available for use within
actions form the core of `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.

Pattern Overview: What goes into a pattern.
Using Shell Variables: How to use shell variables with `awk'.
Action Overview: What goes into an action.
Statements: Describes the various control statements in
Built-in Variables: Summarizes the built-in variables.

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