execlp() system call error in output

Question

This very simple example of exec() system call. Here, I am trying to call execlp() twice. But, I am not getting excepted output. It shows output only f

Answer 1

execlp () replaces the process that called it by the process which was called.

From this link:

"The exec() family of functions replaces the current process image with a new process image."

To retain both the processes, use fork().