I think you can reduce the list a lot more--and should. I'd choose a single lang...

logn on Sept 7, 2012 | parent | context | favorite | on: The 2 Biggest Mistakes I Made When Learning to Cod...

I think you can reduce the list a lot more--and should. I'd choose a single language and learn it well and go from there. And I'd only work the command line features. So Ruby on the command line or JS or Java would be my choices (but only one).