If you have changed your Domain name and want to redirect every link of old domain to new domain, By Example if you want to redirect http://www.olddomain.com to http://www.newdomain.com. You can do this by permanent redirection (301) in your .htaccess file.
Redirect a domain on a Linux ServerOptions + FollowSymLinks
RewriteEngine on
RewriteRule (.*) http://www.newdomain.com/$1 [R=301,L]:
