How to redirect all sub-directories.

Hello,

Say I have a domain - name.com

I create a directory at name.com/abc

Now, I want user to be redirected to another domain when ever user visit the name.com/abc folder, even if user visit name.com/abc/1 which does not exist, but once user reach the abc folder, anything sub-folder in it, user will be redirected, any one know how to do this.

Thanks

Anyone ? Seems like a simple .htaccess code would do it, but which code.

Thanks