Displays a listing of versions, showing version number, owner id (the userid who did the backup), start and end times, and the optional tag. With no options, displays information about the most recent backups.
$ hb versions [-c backupdir] [-r version] or [-a] [-l]
The -r option shows only one version.
The -a option shows all versions.
The -l option counts how many files are saved in each version.