Execute shell/bash command using C/C++

#include <cstdlib>
#include <cstdio>
using namespace std;

int main()
{
　　// declaration of record
　　char record[1000];
　　// prints the shell command into record
　　sprintf(record,"/bin/ls");
　　// this executes what record contains
　　system(record);
　　return 0;
}