The document describes a C program for Ubuntu with three components: Process A waits for Process B to finish, checks its termination status, and reads from 'integers.dat'. Process B prints its ID and parent ID, executes 'process.c', and returns a status of 3 after writing 1000 integers to 'integers.dat'. Finally, Process C sleeps for three seconds before printing its ID and that of its parent.

1. Using Ubuntu, write a progam in C that do this:
A: Wait for the process to finish
B. Checks if B finished normally and prints the return value of B. Then reads the information from
the integer file. dat
e
prints the information on the screen.
B: Prints its ID and that of its parent.
It executes the program process.c and returns a status of 3.
The program processB.c writes
1000
integers
any to the
file integers.dat
C: Sleeps for three seconds and then prints its ID and that of its parent.
A B C