working of fork and exec

Niroj Pokhrel nirojpokhrel at
Thu Jan 17 12:02:45 EST 2013

Hi all,
I have been using fork and exec for sometime. But I have no idea about what
are the things done by the kernel when we fork or exec and how things work.
How the kernel load new program and what all things are done ....... Can
anybody please explain me this ? Thank you in advance.
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