Get Permission from Your Peers with Sudo
I’m certain that most sysadmins have encountered a scenario in the past where it’s become important to give a user access to an otherwise privileged resources on a server without giving them superuser access. And if you’re an Ubuntu user, you will already be relatively used to the process of elevating your privileges to that of a superuser, all without directly typing su -.
The tool of choice in Ubuntu is sudo, which allows you to log in as a normal user. Then, by using sudo -i, you semi-permanently become the superuser, “root”. It’s worth saying that all the other distributions support sudo ...