Update

[Reko]

I have a CD with all the RPM's from the Update directory of RedHat. Is there an RPM command I can run to install all of them at once? I know rpm -ivh *.rpm will work, but that is for install, and will return an error if a package is already installed or needs dependencies. Anyone have a simpler command? Thanks.

[Ludootje]

yes rpm -Uvh *
i stands for install, while U stands for update.
this will also install not yet install rpms, so you should always use that cmd