Installing Prolog in Ubuntu

Again, this is for use with the Seven languages in seven weeks book by Bruce Tate. With Ubuntu 12.10, I installed a version of GNU Prolog which so far is working fine with the examples. The package you need is gprolog:

The version is a tiny bit older than Bruce uses - 1.3.0-6.1 rather than 1.3.1. As I said, no problems encounter yet though as a result.

Installing the Io language

You're probably reading this after getting to the Io chapter in Seven languages in seven weeks. If you're installing on Ubuntu these commands worked for me: (You might also need to apt-get install cmake and/or git)

You can now run "io" from a new shell.