Awk

awk(1) is a scripting language designed for text processing.

There are several implementation of awk(1):

See the GNU awk User Manual for further documentation.

Contents

  1. Awk
    1. Example
      1. Shebang
    2. Syntax

Example

awk 'BEGIN { print "hello world" }'

A better example is extracting the hostnames from the hosts file. 

awk '/^[^#]/ { print $2 }' /etc/hosts

The awk syntax can be written to a script file and executed like: 

awk -f my-hosts-parser.awk /etc/hosts

Shebang

To make an awk script executable, use #! /bin/awk -f as the shebang line.

Syntax

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