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Once you know what gem you want to use,
you need to install it.

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We'll do that using the gem command.

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Let's take a look at how that
works now using Workspaces.

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So let's go ahead and install a gem.

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First, I'm going to search for
it on RubyGems.org.

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And, for this example,
I'm going to install the money gem.

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Now, in order to install it, we only need
to know the name of the gem, in this case,

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it's money.

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So, I've loaded up a workspace here and
I'm right in the console.

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In order to install a gem,
all we need to do is type the word gem.

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And then the word install and the name
of the gem, which in this case is money.

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Once we do that, Ruby and
RubyGems will go out,

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find the gem, download it,
and then install it.

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And we can see that two gems were
successfully installed, money and i18n.

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If we go back to the page on RubyGems.org,

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we can see that the runtime
dependencies specify i18n.

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And since that's specified, Ruby will
download and install that gem as well.

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Now, if for some reason,
you find a gem that isn't on RubyGems and

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want to install it that way,
you can also download the gem.

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On the right side,
there'll be a button to download it.

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So I've clicked the download button, and

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you can see that it appears at
the bottom of our web browser.

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So now I'm gonna clear my screen and,
if we press the File menu, and

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Upload File, then select
the file that we downloaded and

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press open, you'll see on the bottom
left it says it's uploading.

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And then it will appear on the left side
of the screen here in the file list.

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From there, we can type the same command,
gem, install,

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and the name of the gem, which will point
to this particular gem on the file system.

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Now, I started typing the name of
the gem and then pressed Tab so

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that the workspace would
complete the name for me.

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Then, press Enter.

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Now, you'll notice that this time
it said it successfully installed

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the version of the gem that
we had in the console.

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But, it did not install the I18N gem.

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The reason for

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that is that is was already installed
the last time we installed the gem.

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Now if I clear my screen here and
press gem, and

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list, it will show me all of
the gems that I have installed.

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Money, which we just installed,
and i18n, which came with money.

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The rest of the gems that you see are all
part of the default RubyGems installation.

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Try installing Gems on your
own now using Workspaces.