Program to execute shell commands.

How do i make my program execute shell commands again. Like i dunno, for instance,

ping www.google.com

so that it would ping google. Isnt there some way for a prog to pass commands to the shell? I dont want a batch file im not pinging google its just an example.

i've used the system(char*) function before...

Code:

---

#include <process.h>

int main(int argc, char* argv[])
{
        system("ping www.google.com");
        return 0;
}

---

that's one way to do it, i'm sure there are others. if this is a console application, system() will print out the output from the command you executed in your program's output.

http://faq.cprogramming.com/cgi-bin/...&id=1043284392

Is there a way which you can make the computer yuour ping varable, this was an idea, but the code doesn't quite work, so if any1 can c y, then tell me...

Code:

---

#include <iostream>
#include <stdlib.h>
#include <process.h>
#include <string>

using namespace std;

string computer;

int main(int argc, char *argv[])
{
  cout << "Please enter the name of the computer that you want to ping..." << endl;
  cin >> computer;
  system("ping " computer);
  system("PAUSE");
  return 0;
}

---

Quote:

---

Originally Posted by Finchie_88

Is there a way which you can make the computer yuour ping varable, this was an idea, but the code doesn't quite work, so if any1 can c y, then tell me...

Code:

---


  system("ping " computer);

---

---

The system() command requires one argument that is [b]char *[/c].

Here's an example built from yours

Code:

---

#include <iostream>
#include <string>
#include <cstdlib>

using namespace std;


int main(int argc, char *argv[])
{
  string command;
 
  cout << "Please enter the name of the computer that you want to ping..."
      << endl;

  cin  >> command;

  command = "ping " + command;

  cout << "Executing \"" <<  command << "\"" << endl;

  system(command.c_str());

  system("PAUSE");
  return 0;
}

---

Dave

Now thats interesting, I didn't think to do it like that, and the best thing is that it works...

Quote:

---

Originally Posted by Finchie_88

Now thats interesting, I didn't think to do it like that, and the best thing is that it works...

---

That's funny; I thought I got the idea from you. You just didn't make a complete string for the entire command including arguments.

Regards,

Dave