:w !sudo tee %
- selection
- cut buffer
http://www.catonmat.net/download/bash-vi-editing-mode-cheat-sheet.pdf
http://vim.wikia.com/wiki/Mapping_keys_in_Vim_-_Tutorial_(Part_1)
http://vim.wikia.com/wiki/Folding
:g/search_string/norm @q # run macro on search results (global + normal command)
/>_.{-}< # ???
:let @a='hello' . @a . 'world' # change register a