For symmetry, you can use
instead of either ".+1p" or an empty
line (just a newline). The only advantage
that + has is that you can repeat it:
prints the second following line, and
the third. The same is true of -.
If the current line is line number 10,
what line number is -- going to be?
(Hint: you can find out by editing a file
such as "pres", saying "10p", and then
saying "--", and then saying ".=" - remember
When you find out, type "answer N" where