All

Question 1

shutdown, restart

Answer 1

sodu shutdown -r now, sodu shutdown -h +60 (in 60min), sodu reboot

Question 2

open application, open file with specific application

Answer 2

open -a iTunes (without knowing path!), open [file/path] -a TextEdit

Question 3

keyboard shortcuts: switch between browser tabs, open new tab

Answer 3

ctrl + tab, ctrl + shift +tab, command + [numbers], command+t

Question 4

keyboard shortcuts: switch between applications

Answer 4

command + tab

Question 5

check/change/display content directory

Answer 5

pwd, cd [folder], cd ~/ (go back to home directory) ls

Question 6

add a new directory to you PATH

Answer 6

sudo nano /etc/paths , add new directory at the bottom, , run echo $PATH

Question 7

change directory to you home folder

Answer 7

cd ~/

Question 8

show the manual for a command, exit again

Answer 8

man [command], e.g. man ls , press shift+q to exit

Question 9

create new empty file

Answer 9

touch [file name]

Question 10

open file in nano

Answer 10

nano [file name]

Question 11

check the version of something

Answer 11

[something] –version

Question 12

delete files

Answer 12

rm [file name]

Question 13

keyboard shortcuts: Close tab

Answer 13

Command+W

Question 14

view path where smth is installed

Answer 14

which python3

Question 15

make directory / create a folder

Answer 15

mkdir [directory path]

Question 16

add directory to your PATH

Answer 16

cd ~/ , nano .profile , export PATH=”/usr/local/opt/python/libexec/bin:$PATH”