$filename = "urpmi-parallel-ssh-4.0-20.1mdk.noarch.rpm";
print "$filename\n";
if ($filename =~ /^(.+)-([^-]+)-([^-]+)\.(\w+)\.rpm$/ ) {
        print   "package: $1\n",
                "version: $2\n",
                "release: $3\n",
                "arch:    $4\n";
}
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•Update: made the pattern simpler and more universal
•Update: and even simpler, based on a document describing what an rpm name can look like
•Update: added explanation what the components are