Backup diff of 2013-10-18 (No. 1)

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  • 1 (2013-10-18 (Fri) 11:27:16)
  • 2 (2013-10-18 (Fri) 16:39:19)
  • 3 (2013-10-19 (Sat) 19:50:44)

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 $ sudo apt-get install rubygems