One-shot yum command to match rpms between systems?

Question

Given a list of rpms on one system (rpm -qa > list.txt), is there a one-shot command that I can run on another system to remove all of the rpms not listed and add any that are on the list and not present on the second system?

Answer 1

If you had an internal repo of these packages you could yum distro-sync ... otherwise there is no one shot command to do this given a list.

And of course as will be pointed out by many the only right answer is yum update anyway given cherry picking updates is not supported.

Reference: one-shot yum command to match rpms between systems? From: Frank Cox

Answer 2

I'd probably turn it into a puppet manifest or ansible playbook, and use that to install the packages. I'd not use rpm -qa unadorned, though, but rpm -qa --qf "%{NAME}.%{ARCH}n".