[user02@FC4 Lesson08]$ cat -n first_if.cpp

   1  #include <iostream>
   2  using namespace std;
   3
   4  int main()
   5  {
   6     int test_score = 95;
   7
   8     if (test_score >= 90)
   9        cout << "Congratulations, you got an A!" << endl;
  10
  11     return 0;
  12  }

[user02@FC4 Lesson08]$ g++ -o first_if first_if.cpp
[user02@FC4 Lesson08]$ ./first_if
Congratulations, you got an A!