12-17-2023 KenUnix Old School

In vi under Unix use the following most common keys:

a  = Ad text
dd = Delete current line. Example to delete 3 lines you would enter 3dd
i  = Insert text at cursor position
j  = Join lines at the cursor
p  = paste yanked lines at current line position
q  = Quit vi
q! = Quit vi without saving
r  = Read file , append
s  = Substitute text. Example :s/old/new/ for current line
       or :s 1,$ /old/new/ for entire file
u  = Undo the lest operation
w  = Write file
x  = Erase character under cursor
yy = Yank line
:  = Issue command. Example :w to write file
esc= Go to command mode