my vim configuration

.vim

# this is the content of my ~/.vim/ directory
$ tree -L 2 ~/.vim

/home/zezen/.vim
├── autoload
│   └── pathogen.vim
├── bundle
│   ├── emmet-vim
│   ├── nerdtree
│   ├── vim-airline
│   ├── vim-airline-themes
│   └── vim-fugitive
└── colors
    ├── aurora.vim
    ├── space_vim_theme.vim
    └── tequila-sunrise.vim

8 directories, 4 files

.vimrc

" An example for a vimrc file.
"
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last change:	2017 Sep 20
"
" To use it, copy it to
"     for Unix and OS/2:  ~/.vimrc
"	      for Amiga:  s:.vimrc
"  for MS-DOS and Win32:  $VIM\_vimrc
"	    for OpenVMS:  sys$login:.vimrc

" When started as "evim", evim.vim will already have done these settings.
if v:progname =~? "evim"
  finish
endif

" Get the defaults that most users want.
source $VIMRUNTIME/defaults.vim

if has("vms")
  set nobackup		" do not keep a backup file, use versions instead
else
  set backup		" keep a backup file (restore to previous version)
  if has('persistent_undo')
    set undofile	" keep an undo file (undo changes after closing)
  endif
endif

if &t_Co > 2 || has("gui_running")
  " Switch on highlighting the last used search pattern.
  set hlsearch
endif

" Only do this part when compiled with support for autocommands.
if has("autocmd")

  " Put these in an autocmd group, so that we can delete them easily.
  augroup vimrcEx
  au!

  " For all text files set 'textwidth' to 78 characters.
  autocmd FileType text setlocal textwidth=78

  augroup END

else

  set autoindent		" always set autoindenting on

endif " has("autocmd")

" Add optional packages.
"
" The matchit plugin makes the % command work better, but it is not backwards
" compatible.
" The ! means the package won't be loaded right away but when plugins are
" loaded during initialization.
if has('syntax') && has('eval')
  packadd! matchit
endif

"====================
" ZeZeN's config
"====================
set nocompatible

execute pathogen#infect()
syntax on
filetype plugin indent on

set hls		" search highlight 
set is 		" search ignore case
set number	" display line numbers
set ruler
set cursorline
set mouse=a
set tabstop=2
set expandtab


set showmatch
set encoding=utf8
set autoindent

set nobackup
set nowb
set noswapfile
set noundofile

colo aurora 

" always show tabs
set showtabline=2

let g:airline_theme='jellybeans'
let g:airline_powerline_fonts = 1

" ============= key bindings ===========
" remap ctrl+s to save
nnoremap <c-s> :w<CR> # normal mode: save
inoremap <c-s> <Esc>:w<CR>l # insert mode: escape to normal and save
vnoremap <c-s> <Esc>:w<CR> # visual mode: escape to normal and save

" ============= new commands ===========
command W :execute ':silent w !sudo tee % > /dev/null' | :edit! " W (uppercase) to save with sudo

" ============== Nerdtree ==============
" show & hide tree on F2 press
nmap <silent> <F2> :execute 'NERDTreeToggle ' . getcwd()<CR>
let NERDTreeShowHidden=1 " show hidden files on tree
" close nerdtree if last open
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

" ============== file types ==============
autocmd BufNewFile,BufRead *.edge set syntax=html