Bug in UNIX command "rm" !!

[KADIMIL DARJI]

Hello,
I am Kadimil Darji from Ahmedabad, Gujarat, INDIA.

I have come across a bug in UNIX.The following describes it.

Follow the sequence :
(Assume that you are in your home directory)

 $ mkdir parent1
 $ cd parent1
 $ mkdir parent2
 $ cd parent2
 $ mkdir a b c
 $ cd a
 $ mkdir x y z
 $ cd x
 $ mkdir d e f
 $ pwd
   $HOME/parent1/paren2/a/x
 $ rm -r ../../../parent2
 $ pwd
   $HOME/parent1/parent2/a/x
 $ mkdir o p
   Permission denied
 $


  Here I am able to remove the parent directory while remaining in the chile ,
which should not be allowed.This must be called as a bug.The amazing thing is
after removing the parent directory I am still in the child directory !!
  
  The last command won't work because you are in no present working directory
!! What an amazing thing , no present working directory !!

  I think this is a BUG...

  Waiting for your prompt reply ( any, positive or negative )

  Thank you,
  Kadimil...

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