List all RPMs in Linux

Use this command

$ rpm -qa --qf '%11{SIZE} %{NAME}\n' | sort -k1nr

Converting .rpm Packages To Debian/Ubuntu .deb Format With Alien

This article shows how you can convert .rpm packages to .deb packages with a tool called alien so that you can easily install them on Debian and Ubuntu systems. Sometimes this is quite convenient as not all software projects release their software as Debian/Ubuntu packages.

However, you should keep in mind what the alien man page says:

RPM Commands in Linux

Install an RPM Package   

RPM packages have file naming conventions like package-5.1-7.i868.rpm, which include the package name (package), version (2.0), release (4), and architecture (i386). Also notice that RPM understands FTP and HTTP protocols for installing and querying remote RPM files.

rpm -ivh package-5.1-7.i868.rpm

rpm -i ftp://ftp.redhat.com/pub/redhat/RPMS/package-1.0-1.i386.rpm

rpm -i http://oss.oracle.com/projects/firewire/dist/files/kernel-2.4.20-18.10.1.i686.rpm