While studying "Learning the Shell"
As I try terminal entries, I GET 'Permission Denied". Then
I try "su" to become the root user. When I use the password
that I entered as I installed Ubuntu 11.04, I get Authentication
Even when i logged in as non-admin user, and from terminal if enter 'sudo bash' or 'sudo -s', the system does not ask for any password. In the command history, i have not entered any password against the same.