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Point out that it's not necessary to sudo gem install

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Closes #532
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Mislav Marohnić 2015-12-24 19:11:39 +01:00
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@ -293,6 +293,29 @@ that directory can also be a symlink to a Ruby version installed
elsewhere on the filesystem. rbenv doesn't care; it will simply treat
any entry in the `versions/` directory as a separate Ruby version.
#### Installing Ruby Gems
Once you've installed some Ruby versions, you'll want to install gems.
First, ensure that the target version for your project is the one you want by
checking `rbenv version` (see [Command Reference](#command-reference)). Select
another version using `rbenv local 2.0.0-p247`, for example. Then, proceed to
install gems as you normally would:
```sh
$ gem install bundler
```
**You don't need sudo** to install gems. Typically, the Ruby versions will be
installed and writeable by your user. No extra privileges are required to
install gems.
Check the location where gems are being installed with `gem env`:
```sh
$ gem env home
# => ~/.rbenv/versions/<ruby-version>/lib/ruby/gems/...
```
### Uninstalling Ruby Versions
As time goes on, Ruby versions you install will accumulate in your