Handy Vim shortcuts

• Line Numbers
• Set line number with
• :set nu
• Unset line numbers with
• :set nonu
• Set relative line numbers with 
• :set relativenumber.

• Copy selected lines from vim visual mode to system clipboard.
• "+y and then paste it outside vim.

• Make vim paste the content from outside properly.
•  :set paste
• unfold code
• zo
•  fold code  
• zc