Thank you for the clarification.

On Aug 4, 2017 4:58 PM, "Eric Blake" <eblake@redhat.com> wrote:

> On 08/04/2017 04:09 AM, pavan kumar yalavarthi wrote:
> > Thanks,
>
> [top-posting is harder to read on technical lists]
>
> > Can I know why does it work in linux flavours like Red Hat Linux,Kali
> Linux
> > but not ubuntu flavours???
>
> Perhaps you should compare 'touch --version' on the systems with
> differing behaviors.  If the versions are different, it could be that
> you are using an older version on the one where it doesn't work (reading
> NEWS can confirm when the feature was changed; in the case of 'touch -',
> the behavior was changed for 5.90 back in 2005).  If the versions claim
> to be the same (or newer than the point where NEWS documents that the
> change), then your vendor has applied a downstream patch, and you should
> ask your vendor to help you find their downstream patches and why they
> want the changed behavior from upstream.
>
> --
> Eric Blake, Principal Software Engineer
> Red Hat, Inc.           +1-919-301-3266
> Virtualization:  qemu.org | libvirt.org
>
>