.vimrc is the configuration file for vi. Whenever executed, vi will read this file’s contents setting up a customized environment. In order to work, you have to save it in your home directory (~). It is important to notice that the commands should not include the initial colon (:).
Here are some useful commands:
syntax on syntax highlighing set number show line numbers set ruler show the cursor position all the time set ignorecase ignore case when searching set hlsearch highlight searches set tabstop=4 number of spaces of tab character set shiftwidth=4 number of spaces to (auto)indent set autoindent always set auto indenting on set smartindent smart indent set cindent cindent