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().

Answer 2

#include <stdio.h>
#include <unistd.h>

int main() { 

        int ret1,ret2;

        pid_t chd;
        chd=fork(); 
        if(chd==0)
        ret1 = execlp( "pwd", "pwd", (char *) 0);
        else if(chd>0)
        ret2 = execlp( "date", "date", (char *) 0);
        return 0;
}

Answer 3

execlp() replaces the current process image with a new process image. It does not return (unless there was an error starting the new process).

Therefore the second execlp() call is never reached.