24 lines
1.1 KiB
Markdown
24 lines
1.1 KiB
Markdown
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---
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title: Awk
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---
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## What is Awk?
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Awk (also written as awk and AWK) is a programming language used for text processing and typically used as a data extraction tool. Awk comes with most UNIX-based operating systems, and also with some other operating systems, such as Windows 95/98/NT.
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AWK was created at Bell Labs in the 1970s, and its name is derived from the surnames of its authors **Alfred Aho**, **Peter Weinberger**, and **Brian Kernighan**.
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An awk program is a sequence of pattern-action pairs, it reads the input a line at a time and the line is scanned for each pattern in the program and if positive, it performs the associated action. Awk can be used interactively or from script files.
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## Hello World in Awk
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```awk
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BEGIN { print "Hello, world!" }
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```
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The Code is self explanatory , the **BEGIN** keyword denotes the beginning of a awk program.
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### More Information:
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* [Awk - A useful little language](https://dev.to/rrampage/awk---a-useful-little-language-2fhf)
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* [AWK - Wikipedia](https://en.wikipedia.org/wiki/AWK)
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* [Source Code on GitHub](https://github.com/onetrueawk/awk)
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