Copy all the lines to clipboard

Question

Is there any way to copy all lines from open file to clipboard in VI editor. I tried yG but it\'s not using clipboard to store those lines.

So

Answer 1

on Mac

• copy selected part: visually select text(type v or V in normal mode) and type :w !pbcopy

• copy the whole file :%w !pbcopy

• past from the clipboard :r !pbpaste