To access the value of an environment variable, we _____.

What is a zombie process?

What does the Linux 'no' command do?

LILO is _____.

the '-r' switch to the mount command will:

How would you create an alias for the cat command?

To elevate privileges using the sudo command, a user must _.

What would happen if you have a script file named script that takes a long time to complete, and you type nohup ./script & in the command line?

With most GNU commands, if an option is a word, what will it be preceded by?

You can set Linux group passwords using which command?

What would you type to list all systemd service unit files, whether they are enabled or not?