1. Computing

Install Alongside Ruby 1.8.x--Upgrading to Ruby 1.9.1

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This is the final step, it's time to install your new Ruby interpreter. Run the install make target to install Ruby. Since Ruby will be installed to /usr/local, you will need to run this command as root or with sudo.

$ sudo make install

You're done. You can now run Ruby scripts with the ruby19 command, access IRB with irb19 and the Rubygems for Ruby 1.9.1 with gem19.

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