Exam 1

Question 1

This command shows the full path of the current working directory

Answer 1

pwd
Should look like this.

home/student

Question 2

This command list files and directories in the current directory

Answer 2

ls

Question 3

This command is used to change the directory

Answer 3

Cd

Question 4

Move up one directory

Answer 4

Cd..

Question 5

Change to root directory

Answer 5

Cd/

Question 6

Used to visualize directory structure

Answer 6

Tree

Question 7

To make a directory

Answer 7

Mkdir

Question 8

Open your .bashrc file

Answer 8

nano ~/.bashrc

Question 9

How do you create a file

Answer 9

touch

Question 10

How would you make a file in a certain directory

Answer 10

Example

Touch home/index.html

Home is the directory and the file is index but only in the home directory

Question 11

How would you create a root directory

Answer 11

Mkdir ~/my_website

Question 12

This command is used to display the contents of files

Answer 12

Cat

Question 13

What command prints text to the terminal

Answer 13

Echo

Question 14

This command is used to sort lines of text alphabetically or numerically

Answer 14

Sort

Question 15

This command searches for specific patterns in files

Answer 15

Grep

Question 16

This command shows the first part of the file by default the first 10 lines

Answer 16

Head

Question 17

This command shows the last part of the file by default of the last 10 lines

Answer 17

Tail

Question 18

Counts these lines

Answer 18

Wc

Question 19

Temporarily grant administrative privileges to a regular case

Answer 19

Sudo

Question 20

Switch to another user

Answer 20

Su

Question 21

What is the command to create a group

Answer 21

Sudo groupadd <groupname></groupname>

Question 22

How can I check that the group has been made

Answer 22

grep <groupname> /etc/group</groupname>

Question 23

How to create a user with a home directory

Answer 23

Sudo useradd-m dev_(namehere)

Question 24

How would I create a password for the new user

Answer 24

Sudo passwd dev_(namehere)

Question 25

How would I add the user to the group

Answer 25

Sudo usermod -aG <group> dev_(name here)</group>

Question 26

How would I delete a user

Answer 26

Sudo userdel dev_(name here)

Question 27

List all groups

Answer 27

Getent group

Question 28

How to I open the python script

Answer 28

Nano my_python.py

Question 29

How to check sudoers file

Answer 29

Sudo visudo

Question 30

How to write to a file

Answer 30

Echo “hello” > [file name]

Question 31

How to remove a file

Answer 31

Rm [file name]