h
left
j
down
k
up
l
right
x
-> delete 1 character
dd
-> delete 1 line
u
-> undo
:set
number -> add line numbers
after that:
:2
-> to go to line 2
i
-> insert mode
esc
-> normal mode
+p
-> paste from clipboard
:w
-> save
:!
-> run command (followed by shell command)