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mattknox/gist:884341

Created March 24, 2011 00:29
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gistfile1.txt
ls .rvm/gems/ree-1.8.7-2010.02/gems/ | perl -ne 's/(.*)-[.\d]+/$1/; print' | sort | uniq >~/gems
...change to a different ruby...
cat ~/gems | xargs gem install
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