git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim

Put this at the top of your .vimrc to use Vundle.

set nocompatible
filetype off
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
Plugin 'VundleVim/Vundle.vim'

" All of your Plugins must be added before the following line
call vundle#end()            
filetype plugin indent on
" To ignore plugin indent changes, instead use:
" filetype plugin on

" Put your non-Plugin stuff after this line

Launch vim and run :PluginInstall

To install from command line: vim +PluginInstall +qall

YCM is an auto-completion engine for Vim.

Localvimrc is a vim plugin used to load subdirectory specific vimrc file.

This plugin searches for local vimrc files in the file system tree of the currently opened file. By default it searches for all ".lvimrc" files from the file's directory up to the root directory and loads them in reverse order.

Click to download the package vimball.

Open the downloaded vimball

vim localvimrc.vmb

Source it using -

:so %

Then restart your vim.

Localvimrc

Github