= Awk =

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

<<TableOfContents>>

----



== Example ==

{{{
awk 'BEGIN { print "hello world" }'
}}}

A more realistic example is extracting hostnames from the [[Linux/Hosts|hosts file]].

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

Execute a script as:

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



=== Shebang ===

To make an `awk(1p)` script executable, use `#! /bin/awk -f` as the shebang line.

----



== Installation ==

`awk(1p)` will be installed on all [[Linux]] or [[BSD]] distributions.

There are several implementations, some of which are available on additional platforms.

 * Brian Kernighan [[https://github.com/onetrueawk/awk|open-sourced]] the original Unix implementation
 * '''GNU awk''' (or '''gawk''') is an extended implementation
 * [[BusyBox]]
 * [[https://github.com/benhoyt/goawk|GoAWK]]

----



== Syntax ==

 * [[Awk/Patterns|Patterns]]
 * [[Awk/Actions|Actions]]

----



== See also ==

[[https://man.archlinux.org/man/awk.1p|awk(1p)]]

[[https://www.gnu.org/software/gawk/manual/gawk.html|GNU awk user manual]] 



----
CategoryRicottone