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By dotCore
via hmarr.com
Submitted: Nov 08 2012 / 20:50

RVM has long been an essential tool in the Rubyist’s toolbox. It was a huge leap forwards, but it has been increasingly falling out of favour. Recently, a large chunk of the Ruby community moved to rbenv. Touted as the nimble successor to RVM, rbenv has a much leaner feature set, and takes a rather different approach to managing multiple Ruby versions. Whereas RVM would override shell builtins such as cd, rbenv provides shims - small executables that select the correct Ruby version when run.
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