VIM: find empty lines and print them with 1,2,3 lines after and before

Question

I can find empty lines doing this command :g/^$. How to extend this command to print 1 line (2 lines, etc.) before exact empty line and after?

Answer 1

:g/^$/.,+2p

will print every empty line and the two lines below. Use :# instead of :p if you also want the line numbers.

Note that this won't work if the matched line is the last.

See :help :p, :help :#, and :help :range.