Revamp vim config

.vimrc

@@ -1,3 +1,38 @@
-call plug#begin("~/.vim/plugged")
+" basic vim settings (tab width, line numbers, etc)
+set tabstop=4
+set shiftwidth=4
+set softtabstop=4
+set showtabline=2
+set number
+set expandtab
+
+" install vim-plug if it's not installed already
+let data_dir = has('nvim') ? stdpath('data') . '/site' : '~/.vim'
+if empty(glob(data_dir . '/autoload/plug.vim'))
+  silent execute '!curl -fLo '.data_dir.'/autoload/plug.vim --create-dirs  https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
+  autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
+endif
+
+" install plugins
+call plug#begin()
 Plug 'ycm-core/YouCompleteMe'
+Plug 'preservim/nerdtree'
 call plug#end()
+
+" Keybindings for tab management
+map <C-z> :tabp<CR>
+map <C-x> :tabn<CR>
+map <C-c> :tabnew<CR>
+
+" NERDTree settings
+nnoremap <C-t> :NERDTreeToggle<CR>
+let g:NERDTreeAutoDeleteBuffer = 1
+let g:NERDTreeMinimalUI = 1
+let g:NERDTreeQuitOnOpen = 1
+let g:NERDTreeDirArrowExpandable = '>'
+let g:NERDTreeDirArrowCollapsible = '<'
+
+" save/quit
+nnoremap <C-s> :w<CR>
+nnoremap <C-q> :q<CR>
+command Dw :w !sudo tee %