What is the code to 301 http to www in htaccess file on unix server

[Ron10]

i want to 301 my http home page  to www on a linux server and all my other redirects are set up similar to  this in my htaccess file:

redirect 301 /example-page.html http://www.example-page.html

how do I 301 redirect:

http://example.com to http://www.example.com

I've tried all kinds of code recommended for an htaccess file on a linux server  and nothing seems to work.

Thanks for the help mozzers!

Ron

[MoosaHemani]

1st works fine for me....

Redirect 301 /tags/xp/ http://www.test.com/tags/windows-xp/

if it is not working there must be some other problem!

[FedeEinhorn]

Hi Ron,

You will need to use URL rewrite and the following code:

RewriteEngine On

RewriteCond %{HTTP_HOST} !=www.example.com [NC]
RewriteRule ^(.*)$ http://www.example.com/$1 [R=301,L]

That will redirect any page/file on example.com/file to www.example.com/file with a 301 redirect.

Hope that helps!