vim-reference

Command Structure
=================
[count]<verb><modifier><target>
<target> = <object|motion>

Navigation (Motion)
===================
h,j,k,l - left, down, up, right (respectively)
0     - beginning of line
^     - first character of line
$     - end of line
gg    - beginning of buffer
G     - end of buffer
b     - beginning of current word
e     - end of current word
w     - beginning of next word
B     - beginning of current big word (ignores delimiters within string)
W     - beginning of next big word (ignores delimiters within string)
%     - jump to matching tag/parenthesis/bracket/block
)     - next sentence
(     - previous sentence
}     - next paragraph
{     - previous paragraph
f<CHAR> - move forward to next <CHAR>
F<CHAR> - move back to previous <CHAR>
t<CHAR> - move forward to just befor next <CHAR>
H     - move to top of screen
M     - move to middle of screen
L     - move to bottom of screen

Searching (Motion)
==================
/<PATTERN>  - search for pattern
  \<  - beginning of word
  \>  - end of work
n   - go to next string (after executing search)
N   - go to previous string (after executing search)

Commands (Verbs)
================

Edit/Delete
-----------
c   - change (eg. ciw - "change inside next word")
s   - substitute character at cursor
x   - delete character at cursor
r<CHAR>   - replace character at cursor with <CHAR>
d   - delete object (eg. ds - "delete next sentence")
dd  - delete current line
D   - delete from cursor to end of line
J   - join/concat current line with next one (ie. remove newline separator)

Copy/Paste
----------
y   - yank/copy text
yy  - yank the current line
p   - paste after cursor position
P   - paste before cursor position

Indenting
---------
>   - indent block (visual mode)
<   - dedent block (visual mode)
>>  - indent block
<<  - dedent block
==  - fix line indent
gu  - convert to lowercase

Inserting
---------
i   - insert before cursor
a   - append before cursor
I   - insert before first text on current line
A   - append after last text on current line
o   - open new line below cursor
O   - open new line above cursor

Undo/Redo
---------
u   - undo change
<C-r>  - redo changes which were undone

Markers & Registers
-------------------
m<ALPHA>  - mark the current position of cursor as <ALPHA> (<ALPHA> is [a-z])
'<ALPHA>  - go to beginning of line at marker <ALPHA>
`<ALPHA>  - go to precise location of marker <ALPHA>
"<ALPHA>  - setup register <ALPHA> as input/output for command/verb.
            Eg. "add - deletes current line and store in register "a

Modifiers
=========
a<TARGET>   - around/all <TARGET>
i<TARGET>   - inside/in <TARGET>

Objects
-------
w   - word
s   - sentence
p   - paragraph
t   - matching tags
>   - single tag
"   - matching double quotes
'   - matching single quotes
`   - matching back quotes
}   - matching braces
]   - matching square brackets
)   - matching parentheses
%   - matching tags, parentheses, brackets, or block

Extra Objects
-------------
a   - argument (https://github.com/vim-scripts/argtextobj.vim)
i   - current indentation level (https://github.com/michaeljsmith/vim-indent-object)
r   - ruby block (https://github.com/nelstrom/vim-textobj-rubyblock)

Visual mode
===========
v   - enter visual mode
Shift-v - enter linewise visual mode

File Commands
=============
:e    - edit file
:e!   - edit file discarding unsaved changes 
:r <FILE> - read <FILE> and insert below the cursor
:r !<CMD> - execute <CMD> and insert stdout below the cursor
:w    - write file
:q    - quit file
:q!   - force quit without saving changes
ZQ    - same as :q!
:wq   - write and quit
ZZ    - same as :wq
:saveas <FILE>  - save file to <FILE>
:u    - undo one change
:<NUM>  - go to line <NUM> in file
:source <FILE> - read contents of <FILE> as a series of commands
:so <FILE>  - shorthand for :source

Windows
=======
<C-w>  - prefix for window commands
r   - rotate windows
x   - swap the current window with the next one
Shift-<H|J|K|L> - move current window left, down, up, right (respectively)
> - increase size of current window
< - decrease size of current window
<DIR> - change focus to the window in the direction <DIR>

Tags
====
<C-]>   - Jump to the tag underneath the cursor
<C-t>   - Jump back up in the tag stack
:ts <tag>   - Search for a particular tag
:ts   - List all of the definitions of the last tag
:tn   - Go to the next definition for the last tag
:tp   - Go to the previous definition for the last tag
:tf   - Go to first tag
:tl   - Go to last tag

Misc
====
:colorscheme <SPACE> <TAB> - list all installed color schemes