Need help with rewrite directive

Hello guys!

Can anybody tell me how to replace all paths like

http://localhost/media/catalog/product/cache/ANYTHING1/small_image/229x/...
http://localhost/media/catalog/product/cache/ANYTHING2/small_image/229x/...
http://localhost/media/catalog/product/cache/ANYTHING3/small_image/229x/...

To one path
http://localhost/media/catalog/product/cache/ALL/small_image/229x/...

using 'rewrite' directive?

Thank you for help!