Summary
This chapter introduced awk programming. awk is one of the most powerful text-filtering tools available in UNIX. By using awk, it is possible to modify and transform text in ways that are difficult or impossible using only the shell.
Some of the important topics covered in this chapter include:
Field editing
Pattern specific actions
Using STDIN as input
Variables
Numeric and assignment expressions
Using flow control
In addition to these topics, awk offers features such as multiple–line editing, arrays, and functions. If you are interested in learning more about these topics, consult one of the following sources:
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