Redirect 301 from sef url to sef url with unique item?

Is possible to redirect with 301 code the sef url to the sef url with unique item?

For example:

www.xxx.it/banana/banana/banana.html to
www.xxx.it/banana/banana/banana-2009xxxxxx.html

Automatic redirect for all the site (2000 content)

Custom code in htaccess?

Help me please.

Thank you

No, that would be very hard. That's why it's essential to choose the settings before the site has launched and not change them after the site has been indexed by search engines.