The Tutorial shows you How to Install and Getting-Started with the Latest Eclipse 2023-03 R IDE for Java JEE Development on Ubuntu Linux 13.04 Raring Ringtail Unity 32-bit Desktop.
There is the Possibility also to Install the Eclipse Platform via apt-get But the Ubuntu 13.04 Raring apt Repositories are still Back to Eclipse 3.8 Flavor.
So at the Moment if you want Install the Latest Release of Eclipse 2023-03 R Build on Ubuntu Linux 13.04 you will Need to Download and Install Eclipse 2023-03 R Release for Linux.
The contents give Focus only to the Essential Instructions and Commands so to make the Tut easier to understand ;)
Download Latest Eclipse for JEE on Linux:Eclipse 2023-03 R IDE JEE Linux