How to extract first and last lines in a file?

Question

File1

Sergio
Lionel
Luis
Andreas
Gerard

I want my stdout to have just

Sergio
Gerard

How can I do this using the tail command and piping?

Answer 1

This should do the trick:

$ head -n 1 File1; tail -n 1 File1

Answer 2

With sed:

sed -n -e '1p;$p' File1