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 a command line?

• To repeat the last command with superuser privileges

• To list all available commands

• To save the current session

• To exit the terminal

What does the '!!' event designator do?

• Saves the current command

• Lists all previous commands

• Deletes the last command

• Repeats the last command executed

How can you run the most recent command that starts with a specific letter using event designators?

• Type 'exit' followed by the letter

• Type '!!' followed by the letter

• Type 'bang' followed by the letter

• Type 'sudo' followed by the letter

What is the primary function of the 'SU' command?

• To delete a user

• To list all users

• To save the current session

• To switch users and manage permissions

What must you provide when using the 'SU' command to switch to the root user?

• Root password

• Username

• User ID

• Session ID