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popd [ -q ] [ {+|-}n ]
       Remove  an  entry  from the directory stack, and perform a cd to
       the new top directory.  With no argument, the current top  entry
       is removed.  An argument of the form `+n' identifies a stack en-
       try by counting from the left of the list shown by the dirs com-
       mand,  starting  with  zero.   An argument of the form -n counts
       from the right.  If the PUSHD_MINUS option is set, the  meanings
       of `+' and `-' in this context are swapped.

       If  the  -q (quiet) option is specified, the hook function chpwd
       and the functions in the array $chpwd_functions are not  called,
       and  the new directory stack is not printed.  This is useful for
       calls to popd that do not change the environment seen by an  in-
       teractive user.