C code

Write a program that runs commands ls -l and we, where the standard output of the first command is connected to the standard input of the second Wher each of these two processes finish, a message should be displayed saying Process cpid> Finished, where is the process identifier of the finishing process. Note that the need to display a message when a child process finishes forces the parent process to keep its original process image until the entire program ends, which means that it is not allowed to run an exec() system call. You can solve this problem in two ways: Have the parent process span one child process executing command 13 - 1. and have the child process spawn a grandchild process executing 2. Have the parent process sparen to child processes, one executing command 1: -1, the other one executing command uc 0 TELECT EA KE