Execute external command which does not need standard input/output.
In this sample, execute touch command on Linux to create a file "panda.txt", by system function of C++.

#include <stdlib.h>

int main(void) {
  system("touch panda.txt");

  // Please write error handling as neede
 
  return 0;
}

      

$ g++ command.cpp -o command
$ ls
command  command.cpp  
$ ./command
$ ls
command  command.cpp  panda.txt