[CentOS] is yum a complete substitute of rpm?

[Jim Green]

On 13 February 2010 10:13, Ron Loftin <reloftin at twcny.rr.com> wrote:
>
> On Sat, 2010-02-13 at 10:00 -0600, Jim Green wrote:
>> Dear Centos community,
>> I am new to centos/redhat and I would like to know on a centos system,
>> can I use yum alone to do all package management? I don't want to learn
>> two systems and confuse myself, I understand yum is much better than
>> rpm if is the case?
>
> I expect that you will get a bunch of replies on this.
>
> The short form is that yum lives on TOP of RPM.  It is not a replacement
> for RPM.
>
> Yum does most of the thinking for you as far as dependency management.
> It is much more user-friendly, and is the preferred mechanism for
> software installation and maintenance because it does the dependency
> resolution for you, and saves much in the way of headaches, elevated
> stress, confusion, and RSI from excessive keyboard use.
>
> All that being said, there are times when you do want to use RPM by
> itself, without Yum.  If you stay with CentOS and/or RedHat long enough,
> you will run across this situation now and then.

Thank Robert and Ron, Could you list an example where I need to use
rpm command alone? I used rpm to install stand alone package if that
is the case.

Jim