int ShowMachineInfo(int argc, char **argv);
int ShowMachineQuery(int argc, char **argv);
int MachineByOwner(int argc, char **argv);
+int MachineByAcctNumber(int argc, char **argv);
int AddMachine(int argc, char **argv);
int UpdateMachine(int argc, char **argv);
int DeleteMachine(int argc, char **argv);