$ echo qualcosa > qualchefile
$ hg commit -A -m 'Nuovo file.'
aggiungo qualchefile
creata una nuova testa
$ hg heads
changeset: 3:859c842ea668
branch: foo
tag: tip
parent: 1:b15761055392
user: Bryan O'Sullivan <bos@serpentine.com>
date: Fri Jun 05 15:49:04 2009 +0000
summary: NUovo file.
changeset: 2:4dce38140953
branch: bar
user: Bryan O'Sullivan <bos@serpentine.com>
date: Fri Jun 05 15:49:00 2009 +0000
summary: Terzo commit.