How to keep the fancy warning message of sudo forever

You may have noticed the warning message while using sudo for the first time on Linux. I think it's fancy to keep the waring message not only for the first time but for all the time, and surely I like it.

Recursively change permission of files or directories only (*nix)

The issue arises because we may not need the same permission for the files as like the directories. Take a website as example. Generally website files have 644 permission and directories have 755 permission.