From: Eric Hodel <drbrain@...7.net>
Date: 2009-04-30T07:16:25+09:00
Subject: Re: RubyGems question: install vs. update

On Apr 29, 2009, at 14:16, Jeff wrote:

> This must be obvious, but what's the difference between "gem install"
> and "gem update"?
>
> I would have thought that "gem update" would do a gem install plus a
> gem cleanup, effectively updating your current version.  But that
> doesn't seem to be the case.

gem update will update a named gem if there's a newer version, gem  
install will always install.

gem update can update all gems if you don't list any.