Code for .htaccess File (Redirecting an Old Domain to a New Domain)

htacces-old-domain-new.php

#Use PHP 5.4
# Use PHP54 as default
AddHandler application/x-httpd-php54 .php
<IfModule mod_suphp.c>
    suPHP_ConfigPath /opt/php54/lib
</IfModule>
RewriteEngine on
RewriteCond %{HTTP_HOST} ^olddomain.com [NC,OR]
RewriteCond %{HTTP_HOST} ^www.olddomain.com [NC]
RewriteRule ^(.*)$ http://newdomain.com/$1 [L,R=301,NC]
# BEGIN WPSuperCache
# END WPSuperCache
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress