How to delete (not cut) in Vim?

Question

How can I delete a line without putting it into my default buffer?

Example:

line that will be copied.

line that I want to be substitued with the previou         


        

Answer 1

The black hole register "_ will do the trick, but there is a better solution:

When you enter the line back with the p command you are pasting the contents of the (volatile) default register "", which has been overwritten by dd. But you still can paste from the (non volatile) yank register "0, which won't be overwritten by the delete command dd.

So these are the commands you want to use as per your example:

yy
dd
"0p