  useful.py new db <name> [<username> [<password> | --generate]] [-D] [-C]
  useful.py new www <name> [(--user=user --group=group)] [--base=base] [--template=template] [-D] [-C]
  useful.py new user <name> [--home=home] [-D] [-C]
  useful.py untar <source> [--download] [<destination>] [-D] [-C]
