rpm -U *.rpm and installed packages

[Alexander Jolk <alexj buf com>]

Hi,

I'm running into a problem that I cannot believe nobody has seen
before.  I would like to make sure all RPMs in a given directory are
installed.  I'm doing a rpm -U *.rpm in the directory, but if rpm finds
that at least one of the rpms is already installed, it will abort, not
installing anything.  I don't want to use --replacepkgs because that
would reinstall all the rpms that are fine; and I don't want to do rpm
-U on the individual rpms because that would require ordering them in
dependency order beforehand, which is impossible.

This is on RedHat 7.2 (i386).

Alex