$ \textbf{hg branch}
foo
$ \textbf{hg branch bar}
$ \textbf{echo new file > newfile}
$ \textbf{hg commit -A -m 'Third commit'}
adding newfile
$ \textbf{hg tip}
changeset:   
branch:      bar
tag:         tip
user:        Bryan O'Sullivan <bos@serpentine.com>

summary:     Third commit