301 redirect old domain to new exception homepage of old domain

hi
as title
is there way to doing 301 redirect from old domain to new domain
but exception homepage of old domain
I mean if you go to www.olddomain.com
it open as different homepage for www.newdomain.com
while
www.olddomain.com/
and any thing will be after /
already will redirect to
www.newdomain.com

thanks so much in advance

 

.htaccess

Upload it to your root (like under /www )

 

thanks for reply
but this redirect any page whether homepage or anything after / to www.newdomain.com
while I was mean want redirect as example
www.olddomain.com/showthread.php?t=707373
to
www.newdomain.com/showthread.php?t=707373

but not redirect
www.olddomain.com to www.newdomain.com

 

redirects any URL to a page with the same name in the new domain.

Redirect 301 / http://www.newdomain.com/

Code (markup):