[CentOS] DNF update

On Fri, 9 Sep 2016, Always Learning wrote:

>
> On Thu, 2016-09-08 at 23:22 +0100, J Martin Rushton wrote:
>
>> Under Fedora23 issuing a yum command gets you a warning, then it
>> automatically runs the appropriate dnf command.
>
> Can you tell us the DNF for:-
>
> 	yum update
> 	yum groupinstall
> 	yum reinstall
> 	yum erase

DNF isn't used on CentOS.  Stop.

If you want to learn about things that aren't part of CentOS, please do feel
free, there's excellent documentation online.

jh