Step $7.$ Rewrite the program in Step $1.,$ so that the child process runs the ls command, and that the parent

parent process waits until the child process terminates before it exits. Demonstrate your code to the TA$.$

You may use the following code snippet.

else if$($pid $==0)$

$\{$

execlp$("/$bin$/$ls$","$ls$",$ NULL$)$;

$\}$

else

$\{$

wait$($NULL$)$;

printf$("$Child Complete"$)$;

exit$(0)$;

$\}$