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Document rbenv environment variables

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Closes #699, fixes #666 [ci skip]
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Mislav Marohnić 2015-03-13 01:14:24 -07:00
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README.md
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@ -54,6 +54,7 @@ RVM?**](https://github.com/sstephenson/rbenv/wiki/Why-rbenv%3F)
* [rbenv rehash](#rbenv-rehash)
* [rbenv which](#rbenv-which)
* [rbenv whence](#rbenv-whence)
* [Environment variables](#environment-variables)
* [Development](#development)
## How It Works
@ -403,6 +404,18 @@ Lists all Ruby versions with the given command installed.
jruby-1.7.1
ree-1.8.7-2011.03
## Environment variables
You can affect how rbenv operates with the following settings:
name | default | description
-----|---------|------------
`RBENV_VERSION` | | Specifies the Ruby version to be used.<br>Also see [`rbenv shell`](#rbenv-shell)
`RBENV_ROOT` | `~/.rbenv` | Defines the directory under which Ruby versions and shims reside.<br>Also see `rbenv root`
`RBENV_DEBUG` | | Outputs debug information.<br>Also as: `rbenv --debug <subcommand>`
`RBENV_HOOK_PATH` | [_see wiki_][hooks] | Colon-separated list of paths searched for rbenv hooks.
`RBENV_DIR` | `$PWD` | Directory to start searching for `.ruby-version` files.
## Development
The rbenv source code is [hosted on
@ -419,3 +432,4 @@ tracker](https://github.com/sstephenson/rbenv/issues).
[ruby-build]: https://github.com/sstephenson/ruby-build#readme
[hooks]: https://github.com/sstephenson/rbenv/wiki/Authoring-plugins#rbenv-hooks