call system from c++

system.cpp

#include <iostream>

int main(int argc, char* argv[]) {
  std::cout << "starting..." << std::endl;
  system("ls");
  std::cout << "ls done" << std::endl;
  std::cout << "running: " << argv[1] << std::endl;
  system(argv[1]);
  std::cout << "finished" << std::endl;
  return 0;
}