The following will work only if vim --version indicates that you have +xterm_clipboard feature. If not, you will have to install extra packages or recompile vim with that feature added.
There are actually two options for this:
"+y
copies to the "usual" clipboard buffer (so you can paste using Ctrl+V, right click and select "Paste" etc), while
"*y
copies to the X11 selection - you can paste from this buffer using middle click.
Note that "* and "+ work both ways. So if you have selected some text in another application, you can paste it into vim using "*p and if you have copied some text (using, say, Ctrl-C) then you can paste it into vim using "+p.
shift'thenshift=theny(not all at once, one after the other, except the shifts of course). – Reid Mar 30 '17 at 18:39+clipboardand-xterm_save. How do I get the+xterm_clipboard? – Jdeep Jul 22 '20 at 08:04