Unix IPC Question:
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What is fork()?


Fork system call is used to create a new process. Fork is
called onces and returns twice.It will return 0 to the newly
created process (child process) and process id of child to
the calling process(parent process).

The child process gets copy of parents data, stack and heap
segement.The code segement is common for both.Both the
processes will resume execution from the command next to
fork.Scheduler decide which process to run first.

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