Terminal (Linux/macOS)

Question 1

CLI

Answer 1

Command Line Interface

Question 2

pwd

Answer 2

print working directory

Question 3

hostname

Answer 3

my computer’s network name

Question 4

mkdir

Answer 4

make directory

Question 5

cd

Answer 5

change directory

Question 6

rmdir

Answer 6

remove directory

Question 7

ls

Answer 7

list directory

Question 8

pushd

Answer 8

push directory

Question 9

popd

Answer 9

pop directory

Question 10

cp

Answer 10

copy

Question 11

mv

Answer 11

move

Question 12

less

Answer 12

page through a file (c.f. more)

Question 13

cat

Answer 13

print the whole file (c.f. type)

Question 14

xargs

Answer 14

excute arguments

Question 15

find

Answer 15

find files (c.f. dir -r)

Question 16

grep

Answer 16

find things inside files (c.f. select-string)

Question 17

man

Answer 17

read a manual page (c.f. help)

Question 18

apropos

Answer 18

find what manual page is appropriate (c.f. helpctr)

Question 19

env

Answer 19

look at your environment

Question 20

echo

Answer 20

print some arguments

Question 21

export

Answer 21

export/set a new environment variable (c.f. set)

Question 22

exit

Answer 22

exit the shell

Question 23

sudo

Answer 23

DANGER! become superuser root DANGER! (c.f. runas)

Question 24

chown

Answer 24

change file/directory ownership

Question 25

chmod

Answer 25

change file/directory permissions

Question 26

touch

Answer 26

make an empty file (c.f. New-Item)