Linux Commands

Question 1

Whoami

Answer 1

returns the current user name

Question 2

pwd

Answer 2

finds the current system location

Question 3

uname

Answer 3

gets information about the operating system

Question 4

ls

Answer 4

list items in the directory and also shows the file permissions

Question 5

ls -la -a

Answer 5

list all hidden files

Question 6

uname -v

Answer 6

version

Question 7

uname - a

Answer 7

all

Question 8

uname -o

Answer 8

displays OS information

Question 9

cd ~/

Answer 9

navigates to the home directory

Question 10

rm/tmp/tmp*

Answer 10

• anything in the temp directory delete it

Question 11

ls -lR

Answer 11

cache files

Question 12

ls -lR .cache/

Answer 12

clears cache

Question 13

.bash_history

Answer 13

only contains the first lines of the history command

Question 14

echo .bash_history

history -c

Answer 14

To hide the history

Question 15

history

Answer 15

shows all commands you have used

Question 16

chmod

Answer 16

setting permissions

Question 17

chown

Answer 17

changing ownership

Question 18

cd/home/[your user]/Desktop

Answer 18

to navigate to your desktop with a full path

Question 19

cd ../../../

Answer 19

return to the root directory

Question 20

ls -lR .cache/

Answer 20

Recursively list the contents of the .cache directory

Question 21

rm -rf .cache/*

Answer 21

delete all the contents without deleting .cache

Question 22

append

Answer 22

to append a file

Question 23

bye

Answer 23

terminate connection

Question 24

cd

Answer 24

change directory

Question 25

cdup

Answer 25

go to parent directory

Question 26

close

Answer 26

end session

Question 27

delete

Answer 27

delete a file

Question 28

get

Answer 28

receive a file

Question 29

apt install vsftpd

Answer 29

To install FTP server

Question 30

sed

Answer 30

a command in bash scripting that is used to replace words. the command runs a search and deletes and replaces words

Question 31

set

Answer 31

allows users to change one variable or string to another.

Question 32

run

Answer 32

It is used for any file that contains startup information for a command.

Question 33

echo

Answer 33

prints the set content as an output to the user

Question 34

cat

Answer 34

prints all content to the terminal