Uninstall old versions of gems that you didn't know about.

This article is quite old.Time flies when you're having fun. I've been writing for my blog for a long time. Stuff changes fast, especially in the Ruby world. That's why I've put this warning on old posts. The article might still be valid, though.

Gem cleanup

I was browsing through the gem documentation today, and I found a command that I didn't know existed.

sudo gem cleanup

It removes old versions of your installed gems. You can of course specify the gems you'd like to cleanup.

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