chmod to parent and sub directories ?

Hi folk,

Could you please give me command to give the rwx permissions to the parent and its sub directories ?
Is it possible to fire one command or Script for giving permission to both the parent and its sub directories.
I meant to say something like in recurcive.

I am using AIX 5.2

Appreciate your help
Thanks

man chmod
It has a switch for recursive operation

Got it.
Thanks buddy !