URI modification

Hello All,

I need some assistance on a URI modification: 

I have a URL https://abc.com/pqr/stuv/wxyz/xxx/xxx/xx and  need to modifiy the path (prepend the URI) with

 /cdef/ghij/klm so the new URL will be https://abc.com/cdef/ghij/klm/pqr/stuv/wxyz/xxx/xxx/xx/  without

 changing the URL in client browser.

I tried with iRule however it is not working. Can we do this with rewrite ??

Any help is greatly appreciated. Thanks in advance!