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87 lines
2.6 KiB
Text
87 lines
2.6 KiB
Text
= rbenv(1)
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Mislav Marohnić
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:doctype: manpage
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:man manual: Rbenv Manual
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:man source: rbenv {version}
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:man-linkstyle: pass:[blue R < >]
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== Name
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rbenv - manage your application's Ruby environment
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== Synopsis
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*rbenv* _<command>_ [_<args>_...]
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== Description
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rbenv respects the _.ruby-version_ file in a project directory by making sure that any *ruby*, *gem*, *bundle*, or other Ruby command invocation automatically invokes the Ruby version configured for that project.
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It does so by generating shims for all Ruby executables. As long as rbenv shims directory is prepended to PATH, rbenv automatically ensures transparent switching between Ruby versions.
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rbenv looks for available Ruby versions in the _$RBENV_ROOT/versions_ directory.
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== Commands
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*rbenv global* [_<version>_]::
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View or change the global Ruby version
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*rbenv local* [_<version>_]::
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View or change the local Ruby version
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*rbenv shell* [_<version>_]::
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View or change the Ruby version for the current shell session
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*rbenv version*::
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View the currently active Ruby version and where it is set from
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*rbenv versions*::
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List all locally installed Ruby versions known to rbenv
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*rbenv install* [_<version>_]::
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(Provided by the *ruby-build* plugin) Download and install a new Ruby version
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*rbenv rehash*::
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Regenerate shims for all known Ruby executables
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*rbenv which* [_<command>_]::
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View the executable path that a command resolves to
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*rbenv init*::
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Help bootstrap rbenv into the current shell environment
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*rbenv help* [_<command>_]::
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View help text for any rbenv command
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== Environment Variables
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*RBENV_VERSION* (default: read from _.ruby-version_ file)::
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The Ruby version name to be used
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*RBENV_ROOT* (default: _~/.rbenv_)::
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The location where rbenv discovers Ruby versions, plugins, and other configuration
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*RBENV_DEBUG*::
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Activates printing debug information about rbenv internals to standard error
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*RBENV_HOOK_PATH*::
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Colon-separated list of paths searched for rbenv plugin scripts
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*RBENV_DIR* (default: _$PWD_)::
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Directory to traverse bottom-up to locate the _.ruby-version_ file
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== Plugins
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As its core functionality, rbenv only switches between Ruby versions and does nothing else, but offers a plugin mechanism to hook into and override almost any aspect of its default behavior.
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The most common plugin for rbenv is *ruby-build* which facilitates installing new Ruby versions into the _$RBENV_ROOT/versions_ directory.
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Read more at https://github.com/rbenv/rbenv/wiki/Plugins
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== Notes
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* https://github.com/rbenv/rbenv/discussions
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* https://github.com/rbenv/rbenv/wiki
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* https://github.com/rbenv/ruby-build#readme
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