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    Good example. It cleared my doubt. So these cases are handled in a special way to avoid infinite loops. right? Commented Oct 7, 2014 at 1:42
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    As we have a limited way of allowing hard links for directories i.e ".." and "." we will not reach a infinite loop and so we would not require any special ways to avoid those as they will not happen :) Commented Oct 8, 2014 at 3:20
  • @GGill There is is in fact special handling--programs that descend directory trees check the entries of a directory for the names "." and ".." don't process them, as that would result in an infinite loop. Commented Aug 22, 2023 at 3:12