Given that the ip command is installed, what is the effect of the command ip a ls

Which of the following commands will correctly display the version of the Linux kernel running?

Which of the following commands can be used to change the run level?

The user smith issued the egrep '^[[:upper:]]' words.txt command. What does this command do?

In bash you can use these quote marks for command substitution.

What happens if you try to write to /dev/null and /dev/zero?

The ____ filesystem contains most of the operating system files.

The ____ command displays the arp table and is used to modify it.

The ____ command can be used to provide a long listing for each file in a certain directory.

You can type the _____ command, with no arguments, to learn your current username and nothing more?

You can execute ____ main types of linux commands.