$ \textbf{echo something > somefile}
$ \textbf{hg commit -A -m 'New file'}
adding somefile
$ \textbf{hg heads}
changeset:   
branch:      foo
tag:         tip
parent:      
user:        Bryan O'Sullivan <bos@serpentine.com>

summary:     New file

changeset:   
branch:      bar
user:        Bryan O'Sullivan <bos@serpentine.com>

summary:     Third commit