VI/VIM
MODES
#MODE: INSERT
root@oco:~$ vi fileName
vim:~$ i
#MODE: NORMAL MODE
root@oco:~$ vi fileName
vim:~$ i
vim:~$ ESC
#MODE: COMMAND MODE
root@oco:~$ vi fileName
vim:~$ i
vim:~$ :{character}SAVING/EXITING
#MODE: COMMAND MODE
root@oco:~$ vi fileName
vim:~$ i
vim:~$ :{character}
 * :w	Write the file, save
   :q	Quit
   :q!	Quit without saving
   :wq	Write and quitLast updated