1.3.2 Command Line Interface Lesson

Follow Along

Go to apps.cyber.org, log in with info I gave you, and set up your Kali Linux machine and follow along with lesson at around slide 10.

Open Ended

Describe the difference between a Command Line Interface (CLI) and a Graphical User Interface (GUI) in operating systems.

Multiple Choice

Which of the following is NOT a reason to use the Command Line Interface (CLI)?

• It helps you understand how to navigate files

• You can operate your PC even if the GUI is broken

• It is required for all open-source software

• It helps secure your computer against hackers

Multiple Select

What are other names for the Terminal?

• Command Prompt

• Shell

• Window

• DOS

Multiple Select

Which of the following are true about the prompt in Windows and Linux terminals?

• It indicates the computer is ready to receive commands

• It shows the current directory or folder

• It always uses the symbol $

• It can show the user and host information

Open Ended

What is a 'path' in the context of file systems, and why is it important when using the command line?

Multiple Choice

What command can you use in Linux to get help or a manual for another command?

• help

• man

• info

• assist

Open Ended

What does the 'echo' command do in a terminal?

Multiple Choice

Which command would you use to list all files, including hidden ones, in your current directory?

• ls -a

• ls -l

• pwd

• cd

Fill in the Blanks

What are two important tips to remember when typing commands in UNIX systems?

Fill in the Blanks

The command to print your current working directory is

Open Ended

After running the command 'ls -l', what additional information do you see compared to just running 'ls'?

Multiple Select

Select all the commands that can be used to change directories in a UNIX terminal.

• cd foldername

• cd ..

• cd ~

• ls -a

Multiple Choice

Which command is used to change into the Documents directory from your home directory in a Linux terminal?

• cd Documents

• ls Documents

• pwd Documents

• mv Documents

Open Ended

Explain the difference between using 'cd /' and 'cd ~' in a Linux terminal. What directories do these commands take you to?

Multiple Select

Which of the following commands can be used to create or manage files in a Linux terminal?

• touch filename

• cp file1 file2

• mv file1 file2

• ls filename

Fill in the Blanks

Directories can only be removed if they are

.

Multiple Choice

After creating a new directory called StuffFolder, which command would you use to move into that directory?

• cd StuffFolder

• ls StuffFolder

• mv StuffFolder

• rm StuffFolder

Multiple Choice

What are the two reasons why the command 'rmdir StuffFolder' might not work?

• The folder is hidden and you are not an admin

• It is not empty and you are still inside the directory

• The folder is read-only and you are not the owner

• The folder name is incorrect

Multiple Select

Which of the following are benefits of using the 'cat' command over 'less' when reading files?

• Faster display of file contents

• Ability to scroll through pages

• No need to type [q] to exit

• Displays file one page at a time

Open Ended

Explain the difference between using 'cat' and 'less' to read files in Linux. When would you use each command?

Fill in the Blanks

To perform administrative functions on a Linux machine, you must be an administrator, also known as a

user.

Multiple Choice

What command would you use to successfully list the contents of the /root folder if you get a permission denied message with 'ls /root'?

• sudo ls /root

• ls -a /root

• su ls /root

• sudo su /root

Open Ended

Describe the process of switching from a normal user to the root user and then back to the original user in Linux. What commands are used and what changes do you observe?