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Determine which init system a particular linux distro is using.
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Gather timestamps that corresponds to kernel begin initialization,
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Take in raw events and create parent-child dependencies between events
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:param print_format: formatting to represent event, time stamp,
and time taken by the event in one line
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:param log_datafiles: whether or not to log events generated
:return: boot records ordered chronologically
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A passthrough method that makes it easier to call generate_records()
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:return: boot records ordered chronologically
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