Commands

Question 1

ls

Answer 1

List directory contents.

Question 2

cd

Answer 2

Change the current working directory.

Question 3

pwd

Answer 3

Print the current working directory.

Question 4

mkdir

Answer 4

Create a new directory.

Question 5

rm

Answer 5

Remove files or directories.

Question 6

cp

Answer 6

Copy files or directories.

Question 7

mv

Answer 7

Move (rename) files or directories.

Question 8

touch

Answer 8

Create an empty file.

Question 9

cat

Answer 9

Display the contents of a file.

Question 10

nano

Answer 10

A simple text editor.

Question 11

vi

Answer 11

A powerful text editor.

Question 12

grep

Answer 12

Search for a specific text pattern in files.

Question 13

find

Answer 13

Search for files and directories.

Question 14

chmod

Answer 14

Change file permissions.

Question 15

chown

Answer 15

Change file ownership.

Question 16

ps

Answer 16

List running processes.

Question 17

top

Answer 17

Monitor system processes in real-time.

Question 18

kill

Answer 18

Terminate processes.

Question 19

ping

Answer 19

Test network connectivity to a host.

Question 20

ifconfig

Answer 20

Configure network interfaces.

Question 21

ssh

Answer 21

Securely log into a remote machine.

Question 22

scp

Answer 22

Securely copy files between hosts.

Question 23

wget or curl

Answer 23

Download files from the web.

Question 24

df

Answer 24

Display disk space usage.

Question 25

du

Answer 25

Estimate file and directory space usage.

Question 26

tar

Answer 26

Archive and compress files.

Question 27

gzip

Answer 27

Compress or decompress files.

Question 28

uname

Answer 28

Display system information.

Question 29

history

Answer 29

Show command history.

Question 30

man

Answer 30

Display the manual page for a command.