Linux: Set permission only to directories

Question

I have to change the permissions of the htdocs directory in apache to a certain group and with certain read/write/execute.

The directories need to have 775

Answer 1

I use something similar to the solution provided by Gordon:

chmod -R ug=rw,o=r,a+X /path/to/folder/

It should always set 775 for folders and 664 for files, even if the execute permission was previosly set for some file