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If the number of loops, hence the number of children, could be infinite, you really should call wait() for all its children. But you don't need to block in order to do so, just create a thread for...

The process terminates, but isn't removed from the process table until you wait() for it. Things like runtime statistics and return value can still be gleaned from it until you do, which is why they...

You're not calling wait() anywhere, so you may be generating lots of zombie processes -- processes that have completed but haven't been waited for.

You may wish to keep a thread around that does...

fork and exec. fork() copies your process but returns a different value to the copy so it can take a new direction. exec() replaces it with a different program. the original program can do other...