Package Already Installed

If a package of the same name and version is already installed, the following
output is displayed:

Preparing...
########################################### [100%]
package
foo-1.0-1 is already installed

However, if you want to install the package anyway, you can use the --
replacepkgs option, which tells RPM to ignore the error: rpm -ivh --replacepkgs foo-1.0-1.i386.rpm

This option is helpful if files installed from the RPM were deleted or if you want
the original configuration files from the RPM to be installed.

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