[Work] Using vim

Three modes

[normal] Esc
[insert] i, I
[visual] v, C+v (visual block)

Basic commands

:w        write out
:q        quit
:q!       force quit
ZZ        write the file and quit
dd        delete one line
3dd       delete three lines
D         delete portion of current line to right of the cursor
p         paste
u         undo
C+r       redo

w         move cursor one word to right
b         move cursor one word to left
0         move cursor to beginning of line
$         move cursor to end of line
nG        move cursor to line n
C+f       scroll forward one screen
C+b       scroll backward one screen
a         append to right of current cursor position (end with ESC)
dw        delete current word (end with ESC)
ma        mark currrent position
d`a       delete everything from the marked position to here
`a        go back to the marked position
/string   search forward for string (end with Enter)
n         repeat the last search (``next search'')
:s/s1/s2  replace (``substitute'') (the first) s1 in this line by s2
:%s/s1/s2 replace (``substitute'') (the first) s1 by s2 in filewide
%         go to the "mate," if one exists, of this parenthesis
          or brace or bracket (very useful for programmers!)

Advanced commands

:syntax on     syntax coloring
move cursor to the defination of a function(variable): 1. ma 2. gD

visual block operations:
1. C+v -- swicth to visual block mode
2. select rectangular region
3. I -- switch to insert mode and do editing in the selected region, e.g. put  "//" there
4. Esc -- back to the normal mode
5. you can also delete a rectangle region by hit "d" 

Customize your vim

put ~.vimrc
e.g.

set visualbell            " Silence the bell, use a flash instead
set cinoptions=:.5s,>1s,p0,t0,(0,g2         " :.5s = indent case statements 1/2 shiftwidth
             " >1s = indent 1 shiftwidth
             " p0 = indent function definitions 0 spaces
             " t0 = indent function return type 0 spaces
             " (0 = indent from unclosed parantheses
             " g2 = indent C++ scope resolution 2 spaces
set cinwords=if,else,while,do,for,switch,case " Which keywords should indent 
set formatoptions=tcqor                         " t=text, c=comments, q=format with "gq", 
                                                " o,r=autoinsert comment leader
set cindent            " indent on cinwords
set shiftwidth=2                  " set shiftwidth to 4 spaces
set tabstop=2                   " set tab to 4 spaces
set showmatch                   " Show matching brackets/braces/parantheses.
"set background=dark                          " set background to dark
set showcmd            " Show (partial) command in status line.
set autowrite                   " Automatically  save before commands like :next and :make
set textwidth=98                  " My terminal is 98 characters wide
colorscheme evening
syntax on

" Cleanup
function! Clean_up()
set visualbell&
set cinoptions&
set cinwords&
set formatoptions&
set cindent& 
set shiftwidth&
set tabstop&
set showmatch&
"set background&
set showcmd&
set autowrite&
set textwidth&
"unmap 
"unmap 
"unmap 
"unmap 
"unmap 
endfunction