How can I make sure that all new files and directories have certain permissions by default?

Question

bash

It is necessary that the files have permissions 664, and directories 774, but if we use umask we get 664 and 775, are there other ways?

Answer 1

umask set incorrectly?
Are you creating directories with the wrong user?
I will add a useful link:
www.ixbrian.com/blog/?p=121