An HDF5 file is a container for storing a variety of scientific data is composed of two primary types of objects: groups and datasets.
Working with groups and datasets is similar in many ways to working with directories and files in UNIX. As with UNIX directories and files, an HDF5 object in an HDF5 file is often referred to by its full path name (also called an absolute path name).
/ signifies the root group./foo signifies a member of the root group called foo.
/foo/zoo signifies a member of the group foo, which in
turn is a member of the root group.
