Replace Ruby 1.8.x with version 1.9.x

We recently replaced ruby 1.8.6 on a Ubuntu 8.04 Server with Ruby 1.9.1. Follow these steps to remove the old ruby from the system, but be warned that it may not be as simple for you.

First thing was to remove the old ruby1.8. We had installed this from the Ubuntu package installer so removing it was as simple as running:

sudo apt-get uninstall ruby

or

sudo apt-get uninstall ruby1.8

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