RPM
Listing Package-Name.Arch
This is good in case you want to make sure a machine has all the same packages as another machine. You want the arch to ensure you get all the arches you're actually using but you don't want the version because you just want the most recent, whatever that is, and if these are different ditro-versions, that would really suck.
rpm -qa --qf %{NAME}.%{ARCH}"\n" | sort