4. Open a file called readme.txt in the child process, read the contents and pass to the parent process. Parent process will write to readme.txt, “Parent is writing:" and write the contents it...

Use C language,thanks.

Extracted text: 4. Open a file called readme.txt in the child process, read the contents and pass to the parent process. Parent process will write to readme.txt, “Parent is writing:" and write the contents it received from the child to the readme.txt file. (Hint: Use Pipe)