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$ rbenv init # Load rbenv automatically by adding # the following to ~/.bash_profile: eval "$(rbenv init -)" $ echo 'eval "$(rbenv init -)"' >> .bash_profile |
Ruby in Debian
This page documents how to install and use Ruby in Debian. For information about the development of Debian Ruby packages, please see Teams/Ruby.
this documentation is work in progress
Debian Wheezy
The following Ruby interpreters are available in Debian Wheezy:
Interpreter |
Package |
Notes |
MRI 1.8.7 |
ruby1.8 |
|
MRI 1.9.3 |
ruby1.9.3 |
|
JRuby X.Y.Z |
jruby |
|
Rubinius 2.0 |
rubinius |
Work in progress, not actually available yet |
It's possible to switch between different Ruby interpreters as the default ruby program by using update-alternatives. But when you change ruby, you probably also want to change the default gem, irb, etc, so there are shortcuts to changing all of those at once.
Selecting the default Ruby interpreter system-wide
[http://lists.debian.org/debian-ruby/2011/09/msg00087.html|TODO]
Selecting the default ruby interpreter on a per-user basis
To select the default Ruby for a given user account, you should use the [http://packages.debian.org/rbenv|rbenv] package:
$ ruby -v ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux] $ rbenv init # Load rbenv automatically by adding # the following to ~/.bash_profile: eval "$(rbenv init -)" $ echo 'eval "$(rbenv init -)"' >> .bash_profile $ rbenv versions $ rbenv alternatives $ rbenv versions 1.8.7-debian 1.9.3-debian $ rbenv global 1.9.3-debian $ ruby -v ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux]
It looks like it didn't work, but that's because the current shell already cached /usr/bin/ruby as the location of ruby. After you start a new shell, things will work and you will be able to switch the default ruby back and forth:
$ ruby -v ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux] $ rbenv global 1.9.3-debian $ ruby -v ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-linux] $ rbenv global 1.8.7-debian $ ruby -v ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux]
Debian Squeeze
TODO