como ejecutar pcp_recovery_node -h 192.168.1.48 -p 9898 -U pgpool -n 1 y enviar la contraseña

#include <iostream>
#include <string>

int main()
{
  std::string cmd = "pcp_recovery_node -h 192.168.1.48 -p 9898 -U pgpool -n 1";
  std::string password;
  std::cout << "enter password: ";
  std::getline(std::cin, password);
  cmd += " " + password;
  std::system(cmd.c_str());
}