a. fork(); b. exit(); c. getpid(); d. getppid(); e. wait(); f. execl(); Write a C program that uses each of the above system calls at least once. Submit your .c files and screenshots of the...

a. fork();
b. exit();
c. getpid();
d. getppid();
e. wait();
f. execl();

Write a C program that uses each of the above system calls at least once. Submit your .c files and
screenshots of the corresponding output. Make sure that your program compiles and executes
without error.