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
       entry by counting from the left of the list shown  by  the  dirs
       command,  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
       interactive user.
