func DelUser(name string) (err error) {
	err = del(name, &User{})
	if err == nil {
		err = del(name, &Shadow{})
	}
	return
}
func DelUser(name string) (err error) {
	err = del(name, &User{})
	if err == nil {
		err = del(name, &Shadow{})
	}
	return
}
func DelUser ( name string ) ( err error ) { err = del ( name , & User { } ) if err == nil { err = del ( name , & Shadow { } ) } return }
// DelUser removes an user from the system.
DelUser removes an user from the system .