Linux

Important Command

grep -irl "Search Words " --include=*.php

ETC

if .htaccess is not working

https://stackoverflow.com/questions/17162214/htaccess-not-working-on-localhost-with-xampp

<Directory "c:\Projects\example.site">
        Require all granted
         AllowOverride All <-----This line is required
 </Directory>

Mysql 

Create User "username"; 

GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' IDENTIFIED BY 'password';