Use the (cin) user input to paste it in std::system and run a command with the input in another terminal

Use the (cin) user input to paste it in std::system and run a command with the input in another terminal

int main();
{
string ip;
cout << "IP to scan: ";
cin >> ip;

std::system(" nmap .... ")

return 0;
}

so basicly I want the string ip to be used in an gnome ternimal so I can do for example and nmap scan of the ip that the user typed