Ruby and ri(1) ruby information

Kevin O'Gorman kogorman at
Sat Dec 21 09:27:09 UTC 2013

On Sat, Dec 21, 2013 at 1:13 AM, Colin Law <clanlaw at> wrote:
> On 21 December 2013 00:23, Kevin O'Gorman <kogorman at> wrote:
>> On Fri, Dec 20, 2013 at 1:53 PM, Phil Dobbin <bukowskiscat at> wrote:
>>> ...
>>> I heartily agree. RVM is the way to go. You can install, as a single user
>>> installation, in $HOME/ &, apart from very rare instances, never have to use
>>> 'sudo'.
>>> Also it'll give you the chance to use Ruby v2 which has considerable
>>> improvements. Ruby 1.8.7 is EOL...
>>> Cheers,
>>>   Phil.
>> I'm not sure I'm getting all of this.  When you say "install" do you
>> mean "apt-get install" or one of the ruby things that manages
>> packages?  To the extent possible, I'd like to avoid confusing one
>> package manager with updates done by another.  I don't know if that's
>> an issue with Ruby; I'm just asking to verify because of all of this
>> talk about gem or rvm doing package management.
> # install dependencies
> sudo apt-get install build-essential bison openssl libreadline6
> libreadline6-dev curl git-core \
> zlib1g zlib1g-dev libssl-dev libyaml-dev libxml2-dev autoconf
> libc6-dev ncurses-dev automake \
> libtool
> # install rvm, ruby and rails
> curl -L | bash -s stable
> See for info on rvm.  The above may be a little out of date as
> I think rvm now includes an autolibs facility that means you don't
> need to manually install the dependencies, but the above should still
> work.
> When using rvm any gems install command should be run without sudo.

So when I do the bit that says, inter alia, that it installs ruby:
what happens to the existing packages ruby1.9.1 and libruby1.9.1?

Kevin O'Gorman

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