Linux Administration Bootcamp: Go from Beginner to Advanced - Repeating the Last Command as Root

The video tutorial explains how to use the 'sudo' command to repeat previous commands with superuser privileges, using 'sudo !!' or 'sudo bang bang'. It introduces event designators, which allow users to reference commands from shell history, such as using 'bang U' to run the last command starting with 'U'. The tutorial also covers using the 'SU' command to switch to root user and manage users effectively.

What is the purpose of using 'sudo' in command line operations?

Explain the concept of event designators in shell history.

How can you reference the most recent command that starts with a specific string?

What is the significance of the 'SU' command in relation to user privileges?

Describe the process of removing a user from the system using command line.