Minimal Vimrc with Sane defaults to carry from host to host

.vimrc

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"
" Minimal Sane Defaults for Classic Vim
"
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set nocompatible

syntax on
filetype on
filetype indent on
filetype plugin on
filetype plugin indent on


set backspace=indent,eol,start
set foldmethod=indent
set mouse=a                " enable mouse support
set scrolloff=7            " always keep the cursor 7 lines below/above the top/bottom of the window
set encoding=utf-8

set number
set ruler

set autoread
set hidden                  " switch buffers without saving


set noswapfile              " i hate swapfiles
set undofile                " enable undo history
set undodir=~/.vim/undo
set undolevels=10000        " numbers of particular undos to save
set undoreload=100000       " number of undo lines to save
set backupdir=~/vim/backup  " enable backupets

if !isdirectory(expand(&undodir))
    call mkdir(expand(&undodir))
endif

if !isdirectory(expand(&backupdir))
    call mkdir(expand(&backupdir))
endif



""""""""""""
" Completion
""""""""""""

set complete+=d
set completeopt=longest,menuone
" Enable wild mode but ignore nonsensical files
set wildmenu
set wildmode=list:longest
set wildignore=*.swp,*.bak,*.pyc,*.class,*.o,*.obj,*~
set wildignore+=*DS_Store*
set wildignore+=*.gem
set wildignore+=log/**
set wildignore+=tmp/**
set wildignore+=*.png,*.jpg,*.gif
set wildignore+=*.so,*.swp,*.zip,*/.Trash/**,*.pdf,*.dmg,*/Library/**
set wildignore+=*/.nx/**,*.app


set splitright             " always open new splits to the right of current
set splitbelow             " always open new splits below current


" Whitespace
set autoindent             " always indent
set copyindent             " copy previous indent in insert mode
set smartindent 
set wrap
set textwidth=79
set formatoptions=tcqrn1


" Tabs
set tabstop=2
set shiftwidth=2
set softtabstop=2
set expandtab              " expand tabs to spaces
set noshiftround           " round indents to multiple of shiftwidth


" Status bar
set laststatus=2
set showmode               " show the mode in the status line
set showcmd                " show the command in the status line
set showmatch              " briefly jump to matching pairs/brackets


" Searching
nnoremap / /\v
vnoremap / /\v
set hlsearch               " Highlight search results
set incsearch
set ignorecase  
set smartcase              " Ignore case if all lowercase


" Switch to last buffer
nnoremap <leader><tab> :b#<CR>