Unix Terminal Commands

Question 1

man

Answer 1

manual access for help

Question 2

sudo

Answer 2

super user

switch user DO

Question 3

finger

Answer 3

gives more, “pager” , page down

Question 4

less

Answer 4

“pager”

Question 5

append

Answer 5

append symbol

Question 6

redirect

Answer 6

redirect symbol

Question 7

who | wc-l

Answer 7

pipes the word count

Question 8

cat

Answer 8

concatonation

Question 9

touch

Answer 9

create file

Question 10

ls

Answer 10

list

Question 11

cp

Answer 11

copy

Question 12

mkdir

Answer 12

make directory

Question 13

mkdir -p

Answer 13

make parent directory

Question 14

mkdir -m

Answer 14

make directory

Question 15

rmdir

Answer 15

remove directory

Question 16

rm

Answer 16

remove file

Question 17

mv

Answer 17

move file and change file name

mv [old name] [new name]

mv [old location] [new location]

Question 18

process ID

Answer 18

PID

Question 19

parent child

Answer 19

parent child

Question 20

daemons

Answer 20

programs that run in the background

Question 21

forground

Answer 21

see it in the terminal

Question 22

ITA cmd

Answer 22

command

Question 23

chmod

Answer 23

user group other

UGO
r- read
x-execute
w-write

Question 24

& program

Answer 24

& indicates run in background

Question 25

exit codes

Answer 25

0: std in
1: stdout
2: std error

Question 26

in bash scripting there is no spaces

Answer 26

no space use

Question 27

grep

Answer 27

global regular expression

matches string

Question 28

echo

Answer 28

print / display

Question 29

dev/null

Answer 29

location of trash

Question 30

&2

Answer 30

stderr

Question 31

variables can hold any kind of data

Answer 31

in bash scripting

Question 32

bash looks at path variables

Answer 32

list directories

Question 33

if loop test

Answer 33

ends with fi