vcd [-u] path
The vcd command allows one to change the virtual working directory. If no argument is specified, the home directory is assumed. Otherwise, paths starting with a slash (/) are treated as relative to the root of the currently active virtual file system, and other paths are treated as relative to the current working directory. ``..'' specifies the directory above the current working directory along the active path from the root.
The -u option allows one to change one's virtual working directory to a directory included through a named union link.
The vwd command prints the name of the current virtual directory relative to the root of the active virtual system. The vwp command prints the information describing its physical storage location. These are actually aliases defined at the time you run vfsetup.