ex commands
-----------

$HOME/.vimrc       start up options

/\*\*\*            search for *** (note each character must be escaped)

/apple\|orange     find line containing apple or orange

/.*apple\&.*orange find line containing apple and orange

=                  show total number of lines

.=                 show line number of current line

30000              goto line 30000

ab ft foot         ft expands to foot

e #1               go to buffer 1
e #2               go to buffer 2

Explore            explore files and directories

s/logout/logoff/   change logout to logoff on current line

1,$ s/abc/xyz/g    replace abc with xyz globally
1,$ s/abc/xyz/gc   replace abc with xyz globally with confirmation
%s/abc/xyz/g       same but shorter
%s/^M//g           remove ^M (note that to enter ^M hit CTRL-V and hold
                    CTRL and press M)

15,329 w goop.txt  write range of lines to goop.txt
20,40 d            delete range of lines

1,$!sort           sort lines

r goop.txt         insert goop.txt into file

r !date            insert date into file

args               Show list of arguments

as                 give ASCII code for character under cursor

buffers            show buffers
bp                 previous buffer
bn                 next buffer

digraph            show digraphs

nohl               turn off highlighting

set all            show all options
set wm=0           set wrap margin to 0
set textwidth=90   set text width to 90 characters
set ic             set ignore case on
set nu             show line numbers
set nonu           turn off line numbers
set ruler          show ruler
set noruler        turn off ruler
set encoding=utf-8 sets encoding to utf-8
set digraph        turn on digraphs

split              split window hortizontally
split file.txt     split window, new window contains file.txt
vsplit             split window vertically

syntax on          turn on colours
syntax off         turn off colours

g/^/mo0            reverse order of lines

g/abc/d            delete all lines containing abc
300,$ g/garbage/d  delete from line 300 to end of line all lines matching garbage

map! gatt General Agreement on Tariffs and Trade
unmap! gatt

ve		   display version information

w !ispell -a       spell check
w! text.txt        write file text.txt and overwrite if necessary
w! ~/text.txt      write file text.txt into the home directory with overwrite


visual commands
---------------

~                  toggle lower to upper case (or vice versa) and advance cursor

``                 move cursor back to previous position

.                  repeat last command
6.                 repeat last command 6 times

dG                 delete to end of file
d1G                delete from beginning of file to cursor
dH                 delete from beginning of screen to cursor
dL                 delete up to last line on screen
dd                 delete current line
d$		   delete to end of line

fc                 find a character, e.g. fc finds first c on current line

G                  go to the last line
10G                go to line 10

g?g?               Rot13 entire current line

H                  home cursor to top left of screen

h j k l            move cursor left, down, up, right respectively 

100ihello          insert hello 100 times

R                  edit in typeover mode, esc to exit

Q                  go into ex mode (vi returns to visual mode)

u                  undo last command

xp                 transpose two letters

yy                 yank one line
yG                 yank from cursor to end of file

zt                 redraw window with current line at top
3zt                redraw window with line 3 at top

ctrl-g             display filename, line number and percentage in file
ctrl-h             backspace
ctrl-R             redo last command
ctrl-v             set visual block, use cursor keys to resize

ctrl-f             page forward
ctrl-b             page backward

ctrl-u             scroll up
ctrl-d             scroll down

ctrl-w v           ctrl-w then hit v, makes window split vertically
ctrl-w s           makes window split hortizontally
ctrl-w c           close current window
ctrl-w w           jump to next window
ctrl-w n           split with new buffer

ctrl-X             subtract one from number under cursor
ctrl-A             add one to number under cursor (ctrl-a also works)

\si                invoke ispell (must be in ~/.vimrc)


recording macros
----------------

hit q then m (this will map the macro to @m)
o for insert
type some stuff
esc to end insert mode
hit q to stop recording
macro is used by typing @m

files
-----

/etc/vimrc
~/.vimrc

command line
------------

vim -g             start in graphics mode
vim -R             read only mode
vim -r             list swap files for possible recovery
vim --version      show version
vim test.txt +/\lobby
                   edit file test.txt putting cursor on first occurrence of lobby
vim -O3 f1.txt f2.txt f3.txt
                   edit 3 files each in a vertical window
view file          view file in read only mode


When using ssh
--------------

Sometimes when using ssh vi will work differently, that is
the backspace key will only backspace and not delete. Use
the del key instead.