Normally we install software in ubuntu via Synaptic or command apt-get,but some softwares are only distributed in RPM format,to install this kind of software in ubuntu we can use tool Alien to convert the RPM package to DEB package ,then we can install these software using command dpkg.

1.Open a terminal ,then use apt-get to install Alien and other dependency packages

sudo apt-get install alien debhelper build-essential dpkg-dev

2.Use Alien to contert your RPM package to DEB package

sudo alien yourpackagename.rpm

3.Install this software using below command

sudo dpkg -i yourpackagename.deb

4.Done.You just installed this RPM package by converting it’s format