UNIX Operating System Question:
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Predict the output of the following program code?

Answer:

main()
{
fork(); fork(); fork();
printf("Hello World!");
}
Answer:
"Hello World" will be printed 8 times.
Explanation:
2^n times where n is the number of calls to fork()

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Predict the output of the following program code in UNIX?List the system calls used for process management in UNIX?