Go to line 45
45gg
Move current line to top, middle, bottom
zt, z., zb
Move cursor to Higher, Middle, Lower part of screen
H, M, L
Append at end of line
A
Insert at new line below
o
delete line (and put it into the default register)
dd
paste the default register
p
search forward for foo
/foo
:wq, :x
write and quite
write a copy of the file you are editing as filename
:w filename
quit without saving
:q!
Go to beginning of the line
Go to end of the line
$
w
beginning of next word
e
end of next word
b
beginning of previous word
Delete 10 lines
10dd
C, c$
change to end of line
ce
change to end of word