My .vimrc

.vimrc

execute pathogen#infect()
filetype plugin indent on
syntax enable
colorscheme Mustang 
map <C-n> :NERDTreeToggle<CR>
nmap <C-a> :set invnumber<CR>

set showmode                    " always show what mode we're currently editing in
set nowrap                      " don't wrap lines
set tabstop=4                   " a tab is four spaces
set softtabstop=4               " when hitting <BS>, pretend like a tab is removed, even if spaces
set expandtab                   " expand tabs by default (overloadable per file type later)
set shiftwidth=4                " number of spaces to use for autoindenting
set shiftround                  " use multiple of shiftwidth when indenting with '<' and '>'
set backspace=indent,eol,start  " allow backspacing over everything in insert mode
set autoindent                  " always set autoindenting on
set copyindent                  " copy the previous indentation on autoindenting
set number                      " always show line numbers
set showmatch                   " set show matching parenthesis
set ignorecase                  " ignore case when searching
set smartcase                   " ignore case if search pattern is all lowercase,
                                "    case-sensitive otherwise
set smarttab                    " insert tabs on the start of a line according to
                                "    shiftwidth, not tabstop
set scrolloff=4                 " keep 4 lines off the edges of the screen when scrolling
set virtualedit=all             " allow the cursor to go in to "invalid" places
set hlsearch                    " highlight search terms
set incsearch                   " show search matches as you type
set gdefault                    " search/replace "globally" (on a line) by default

set pastetoggle=<C-y>           " when in insert mode, press <F2> to go to
                                "    paste mode, where you can paste mass data non auto indented
set mouse=a                     " enable using the mouse if terminal emulator
                                "    supports it (xterm does)
set title                       " change the terminal's title
set showcmd                     " show (partial) command in the last line of the screen
                                "    this also shows visual selection info
if $TERM_PROGRAM =~ "iTerm"
        let &t_SI = "\<Esc>]50;CursorShape=1\x7" " Vertical bar in insert mode
        let &t_EI = "\<Esc>]50;CursorShape=0\x7" " Block in normal mode
endif

"move lines
" Normal mode
nnoremap <C-j> :m .+1<CR>==
nnoremap <C-k> :m .-2<CR>==

" Insert mode
inoremap <C-j> <ESC>:m .+1<CR>==gi
inoremap <C-k> <ESC>:m .-2<CR>==gi

" Visual mode
vnoremap <C-j> :m '>+1<CR>gv=gv
vnoremap <C-k> :m '<-2<CR>gv=gv