How to change permissions for a folder and its subfolders/files in one step?

Question

I would like to change permissions of a folder and all its sub folders and files in one step (command) in Linux.

I have already tried the below command but it works

Answer 1

To set to all subfolders (recursively) use -R

chmod 755 /folder -R

And use umask to set the default to new folders/files cd /folder umask 755