My simple vim setup

.vimrc

set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'VundleVim/Vundle.vim'

" Put your plugins definition below.
" ----------------------------------
Plugin 'scrooloose/nerdtree'    " NERDTree for file explorer.
Plugin 'kien/ctrlp.vim'	        " Fuzzy file search.
Plugin 'airblade/vim-gitgutter' " Git diff file.
Plugin 'szw/vim-tags'		" Go to definition easily in Vim.
Plugin 'davidhalter/jedi-vim'   " Static analysis for autocomplete python in Vim.
Plugin 'bling/vim-airline'	" Status or Tabline for Vim.
Plugin 'fisadev/vim-isort'	" Auto re-order import python code.
" ----------------------------------

" All of your Plugins must be added before the following line
call vundle#end()            " required
filetype plugin indent on    " required
" To ignore plugin indent changes, instead use:
"filetype plugin on
"
" Brief help
" :PluginList       - lists configured plugins
" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate
" :PluginSearch foo - searches for foo; append `!` to refresh local cache
" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line

" VIM override default configuration.
set number
syntax on

" NERDTree custom configuration.
let NERDTreeIgnore = ['\.pyc$', '\.swp$']
map <C-n> :NERDTreeToggle<CR>
map <C-e> :NERDTreeFocus<CR>

" Isort custom configurationt
let g:vim_isort_map = '<C-i>'
let g:vim_isort_python_version = 'python2'

" Ctags custom configuration.
let g:vim_tags_auto_generate = 1 " Auto generate tags on file saving.

" Change cursor on INSERT, REPLACE and NORMAL mode.
let &t_SI = "\<Esc>Ptmux;\<Esc>\<Esc>]50;CursorShape=1\x7\<Esc>\\"
let &t_SR = "\<Esc>Ptmux;\<Esc>\<Esc>]50;CursorShape=2\x7\<Esc>\\"
let &t_EI = "\<Esc>Ptmux;\<Esc>\<Esc>]50;CursorShape=0\x7\<Esc>\\"

" Move window split vim.
map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l

" Commenting blocks of code.
autocmd FileType c,cpp,java,scala let b:comment_leader = '// '
autocmd FileType sh,ruby,python   let b:comment_leader = '# '
autocmd FileType conf,fstab       let b:comment_leader = '# '
autocmd FileType tex              let b:comment_leader = '% '
autocmd FileType mail             let b:comment_leader = '> '
autocmd FileType vim              let b:comment_leader = '" '
noremap <silent> ,cc :<C-B>silent <C-E>s/^/<C-R>=escape(b:comment_leader,'\/')<CR>/<CR>:nohlsearch<CR>
noremap <silent> ,cu :<C-B>silent <C-E>s/^\V<C-R>=escape(b:comment_leader,'\/')<CR>//e<CR>:nohlsearch<CR>