one-liner: print all lines except the last 3?

Question

I would like to simulate GNU\'s head -n -3, which prints all lines except the last 3, because head on FreeBSD doesn\'t have this feature. So I am t

Answer 1

Nobody seems to have use sed and tac, so here's one:

$ seq 10 | tac | sed '1,3d' | tac
1
2
3
4
5
6
7