You can install RPM files in Ubuntu using alien. Install alien from the Ubuntu Universe repository by doing:
$sudo apt-get update $sudo apt-get install alien
Installing the .rpm fileTo install the .rpm file, you first need to convert it to a .deb file which can be installed on Ubuntu.I assume that you downloaded the package to your Desktop (~/Desktop is the directory)You can convert the .rpm to a .deb by using the following commands.
$cd ~/Desktop
This will change the directory to your desktop, where you have the .rpm file.
$sudo alien -k name-of-rpm-file.rpm
This will convert the .rpm to a .deb.- The â-kâ will keep the version number. Otherwise alien adds a â1â³ to the version number.- Tip: Use Smart Tab Completion to avoid mistyping the file names
$sudo dpkg -i name-of-deb-file.deb
This will install the .deb package
Try reading the alien manpage for more details.