This Document covers some of the most commonly used vim commands:

# Super Basic:

# Quit Vim:

:q (make sure to enter the colon, this is in NORMAL mode)
:q! (quit without saving)

# Save Document:

:w
:wq (save and quit)

# Insert Text (enter INSERT mode):

i (that's right, just hit i)
a (enter insert mode, and put the cursor one ahead, ie append)

# Return to NORMAL mode:

Esc (hit the Escape key)

# Enter VISUAL mode:

v (from NORMAL mode, hit v, this will allow you to enter VISUAL mode)

# Navigate the Document in NORMAL mode:

h (go one character left)
j (go one character down)
k (go one character up)
l (go one character right)

w (go to the first character of the next word)
e (go to the last character of the next word)
b (go to the first character of the last word)

0 (go to the beginning of the current line)
$ (go to the end of the current line)

ctrl+d (navigate down one half screen)
ctrl+u (navigate up one half screen)
ctrl+f (navigate down one full screen)(essentially pgdown)
ctrl+b (navigate up one full screen)(essentially pgup)

# Copy/Paste:

yy or Y: copy current line, including new line character
y$: copy to the end of current line, but not the new line character
yiw: copy the current word, excluding surrounding whitespace
yaw: copy the current word, including surrounding whitespace
ytx: copy from the current cursor position up to and before the character represented by x
yfx: copy from the current cursor position up to and  including the character represented by x

# Undo/Redo:

u: undo
Ctrl-R: redo

# Indent/Unindent:

>> : indent current line
<< : unindent current line

Travel to a specific line:
5G (takes you to line 5)

Page Up/ Page Down:
CTRL + B (Page Up)
CTRL + F (Page Down)

Global Search and Replace:

:%s/word_to_replace/new_word/g