How to navigate in Terminal command line and in VIM on Mac OSX

TERMINAL commands in MAC OSX 
Ctrl + a (takes you to the beginning of the line)
Ctrl + e (takes you to the end of the line)
Alt or Option + (left arrow) or (right arrow) move back by 1 word (the alternative is Esc + b or Esc + f --  I have to retype Esc + b *each time*)

Ctrl + L Clears the Screen, similar to the clear command
Ctrl + U Clears the line before the cursor position. If you are at the end of the line, clears the entire line.
Ctrl + H Same as backspace
Ctrl + R Let’s you search through previously used commands
Ctrl + C Kill whatever you are running
Ctrl + D Exit the current shell
Ctrl + Z Puts whatever you are running into a suspended background process. fg restores it.
Ctrl + K Clear the line after the cursor
Ctrl + T Swap the last two characters before the cursor
Esc + T Swap the last two words before the cursor
Alt + F Move cursor forward one word on the current line
Alt + B Move cursor backward one word on the current line
Tab Auto-complete files and folder names

VIM commands in MAC OSX 

ctrl-F	Move forward one screen.
ctrl-B	Move backward one screen.
$	Move cursor to end of line.
^	Move cursor to beginning of line.
:1	Move to first line of file
:$	Move to last line of file
/	Search for a character string.
?	Reverse search for a character string.
x	Delete the character at the cursor position.
dd	Delete the current line.
p	Paste data that was cut with x or dd commands.
u	Undo.

Entering Input Mode

a	Add text after the cursor.
i	Insert text before the cursor.
R	Replace text starting at the cursor.
o	Insert a new line after the current one.

Entering Command Mode

esc	Switch from Input mode to Command mode.

Exiting or Saving Your File

:w	Write file to disk, without exiting editor.
ZZ	Save the file and exit.
:q!	Quit without saving.