Question

Open a file called readme.txt in the child process, read the contents and pass to the parent process using Pipe. Parent process will write to readme.txt, "Parent is writing:" and write the contents it received from the child to the readme.txt file. In C code.

Answer 1

To open and read a file in C code and pass its contents to another process using a pipe.

Step-by-step explanation:

To open a file called readme.txt in C code and read its contents in the child process, you can use the `fopen()` and `fread()` functions. Then, pass the contents to the parent process using a pipe created with the `pipe()` system call. The parent process can write to the readme.txt file and include the phrase 'Parent is writing:' using `fputs()` or `fprintf()`, and then write the contents received from the child process using the same functions.