Minimal configuration in ~/.vimrc
Note: We have to add source ~/.vimrc in the ~/.bashrc file
set ts=2
set sts=2
set sw=2
set expandtab // set et
set ruler
syntax on
set paste // during set paste: et,ts,retab will not work
set nu
While pasting something in yaml file, to avoid auto intendation set paste.
After pasted, set nopaste
set line to highlight the tabs and line-ends