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

Gordon's answer above is correct, but if you're trying to lock down access to a directory tree, it leaves scripts that are executable to the owner also executable to whoever has been granted the capital X.

Using

find  -type d -exec chmod 775 {} +

or

find  -type d -exec chmod 755 {} +

is safer.