also, i have followed the instructions here: 
http://stackoverflow.com/questions/9056008/installed-ruby-1-9-3-with-rvm-but-command-line-doesnt-show-ruby-v/9056395#9056395

and here: 
http://www.andrehonsberg.com/article/install-rvm-on-linux-mint-12


DO NOT USE MINT LINUX IF YOU ARE A SERIOUS DEVELOPER IT DOES NOT WORK 
!!!

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