Linux Commands

Question 1

what is the kill command?

Answer 1

kill / stops proccess

Question 2

kill processID

Answer 2

kills the process listed

Question 3

what does the command shutdown do?

Answer 3

shuts down the computer with a 1 minute timer.

Question 4

shutdown - c

Answer 4

cancel shutdown

Question 5

shutdown -r

Answer 5

shutdown computer and reboot

Question 6

shutdown now

Answer 6

shutdown right now with no timer

Question 7

apt-get

Answer 7

opens the apt repository

Question 8

sudo apt-get update

Answer 8

update apt-get

Question 9

sudo apt-get sudo install programname

Answer 9

install a program

Question 10

sudo apt-get upgrade

Answer 10

how to upgrade all of the apps

Question 11

sudo apt-get remove programname

Answer 11

how do you remove a program

Question 12

ps

Answer 12

processes

Question 13

ps aux

Answer 13

shows all processes with details for all users

Question 14

chmod

Answer 14

change permissions

Question 15

what order are file permissions listed?

Answer 15

user
group
other

Question 16

what numbers are assigned to each of the types of permissions?

Answer 16

1. r=4
2. w=2
3. x=1

Question 17

chmod 664 user

Answer 17

change file permissions rw user rw group r other for user

Question 18

chown

Answer 18

change ownership

Question 19

sudo chown timmy fred

Answer 19

change ownership from timmy to fred

Question 20

passwd

Answer 20

change password

Question 21

what 3 steps would you use to change a password?

Answer 21

1. be logged into the account of the user whose password you want to change
2. sudo passwd
3. enter new password

Question 22

dd

Answer 22

bit by bit copy command

Question 23

dd if=/dev/sda of=/dev/sdb

Answer 23

copy everything from (source)=partition/device name (to) partition/device name

Question 24

dd if=/dev/sda2 of=~/backup.img

Answer 24

make a backup / image file

Question 25

dd if=/dev/zero of=/dev/sdb

Answer 25

just write zeros’s to this destination completely 0’s

Question 26

rm filename.ext

Answer 26

remove file

Question 27

rm *

Answer 27

remove everything

Question 28

cp

Answer 28

copy

Question 29

mv

Answer 29

move

Question 30

copy m* path

Answer 30

copy everything starting with m to path folder

Question 31

mkdir_name

Answer 31

make folder

Question 32

rmdir name

Answer 32

remove folder

Question 33

Linux equivalent to PowerShell

Answer 33

Bash Shell

Question 34

sudo

Answer 34

run admin

Question 35

ls

Answer 35

directory

Question 36

su

Answer 36

superuser 1 time use

Question 37

how you delineate switches in Linux

Answer 37

-

Question 38

man

Answer 38

manual command = help

Question 39

q

Answer 39

quit

Question 40

cd ~

Answer 40

home directory

Question 41

pwd

Answer 41

tells you the current directory

Question 42

tab

Answer 42

autocompletes