Commands 0.1

Question 1

What command is used to update the package list in Ubuntu?

Answer 1

sudo apt update

Question 2

True or False: The command ‘sudo apt upgrade’ upgrades installed packages to their latest versions.

Answer 2

True

Question 3

Fill in the blank: The command ‘sudo apt _______’ is used to install a new package.

Answer 3

install

Question 4

What command is used to remove a package in Ubuntu?

Answer 4

sudo apt remove

Question 5

Which command is used to search for a package in the repositories?

Answer 5

apt search

Question 6

What does the command ‘sudo apt autoremove’ do?

Answer 6

It removes unnecessary packages that were automatically installed to satisfy dependencies for other packages and are no longer needed.

Question 7

True or False: The command ‘sudo apt clean’ clears out the local repository of retrieved package files.

Answer 7

True

Question 8

What command can you use to check the disk usage of your file system?

Answer 8

df -h

Question 9

What is the command to display the current working directory?

Answer 9

pwd

Question 10

Which command is used to change directories in Ubuntu?

Answer 10

cd

Question 11

What command is used to list files and directories in the current directory?

Answer 11

ls

Question 12

True or False: The command ‘mkdir’ is used to delete a directory.

Answer 12

False

Question 13

What command do you use to create a new directory?

Answer 13

mkdir

Question 14

Fill in the blank: The command ‘rm -______’ is used to remove directories and their contents recursively.

Answer 14

r

Question 15

What command is used to copy files or directories?

Answer 15

cp

Question 16

Which command is used to move or rename files and directories?

Answer 16

mv

Question 17

True or False: The command ‘touch’ is used to create an empty file.

Answer 17

True

Question 18

What command can be used to display the contents of a text file?

Answer 18

cat

Question 19

What is the command to view the manual of a command?

Answer 19

man

Question 20

Fill in the blank: The command ‘______ -l’ provides a detailed list of files and directories.

Answer 20

ls

Question 21

What command is used to show the system’s IP address?

Answer 21

ip addr

Question 22

True or False: The command ‘shutdown’ is used to restart the system.

Answer 22

False

Question 23

What command is used to restart the Ubuntu system?

Answer 23

sudo reboot

Question 24

What command is used to shut down the Ubuntu system?

Answer 24

sudo shutdown

Question 25

Fill in the blank: To view running processes, you can use the command '______'.

Answer 25

ps

Question 26

What command allows you to kill a process by its PID?

Answer 26

kill

Question 27

True or False: The command 'top' provides a dynamic view of system processes.

Answer 27

True

Question 28

What command is used to find out the current system uptime?

Answer 28

uptime

Question 29

Fill in the blank: The command '______ -a' shows all users currently logged into the system.

Answer 29

who

Question 30

What command is used to change the owner of a file?

Answer 30

chown

Question 31

Which command is used to change the permissions of a file?

Answer 31

chmod

Question 32

True or False: 'sudo' allows a permitted user to execute a command as the superuser or another user.

Answer 32

True

Question 33

What command is used to check the available memory on the system?

Answer 33

free -h

Question 34

Fill in the blank: The command '______' is used to display system information.

Answer 34

uname

Question 35

What command is used to install software from a .deb file?

Answer 35

sudo dpkg -i filename.deb

Question 36

What command is used to display network configuration details?

Answer 36

ifconfig

Question 37

True or False: The command 'history' displays a list of previously executed commands.

Answer 37

True

Question 38

What command is used to edit files in Ubuntu?

Answer 38

nano

Question 39

Fill in the blank: The command '______' is used to display the last lines of a file.

Answer 39

tail

Question 40

What command can you use to search for a string in a file?

Answer 40

grep

Question 41

What command is used to display the current date and time?

Answer 41

date

Question 42

True or False: The command 'clear' is used to clear the terminal screen.

Answer 42

True

Question 43

What command is used to create a symbolic link to a file?

Answer 43

ln -s