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Today's short tutorial is about searching and replacing certain keywords or words for example in a file using awk in linux.

the command is pretty straight forward, lets say i have a file called hosting.php and this is how hosting.php looks like:

Webune has great Web Hosting Service - Please visit www.webune.com to get started with a dedicate linux server today.


as you can see hosting.php is pretty simple - so lets say we want to change the word 'Service' with 'Support' we can use this shell command to do exactly that:

awk '{gsub("Service", "Support", $0); print > FILENAME}' hosting.php


now when you open hosting.php it will look like this:
Webune has great Web Hosting Support - Please visit www.webune.com to get started with a dedicate linux server today.


IMPORTANT: its very important to mention that Linux is case sensative, so Support and support are not the same

hope that helps