See https://rvm.io/rvm/install/
curl -L get.rvm.io | bash -s stable
On OS X you can use RailsInstaller which will bring all dependencies for you: installer: https://github.com/railsinstaller/railsinstaller-nix/downloads background: http://www.engineyard.com/blog/2012/railsinstaller-for-os-x/
rvm get stable
In case of problems try first with development version (maybe it's already fixed):
rvm get head
Very old installations might not support those update methods, just run the installer and reopen your terminal.
Follow instructions from:
rvm requirements
rvm list known
rvm install 1.9.3 # Latest known patch level
rvm install 1.9.3 -j 3 # Parallel compile, set to # of CPU cores
rvm install 1.9.3 --patch falcon # Use a patch (falcon for performance)
rvm install 1.9.2-p318 # Patchlevel 318
rvm install rbx --1.9 # Rubinius with 1.9 mode set as default
rvm list # List rubies only
rvm list gemsets # List rubies and gemsets
rvm gemset list # List gemsets for current ruby
rvm system # For system ruby, with fallback to default
rvm use jruby # For current session only
rvm use --default 1.9.3 # For current and new sessions
rvm use --ruby-version rbx # For current session and this project
RVM will automatically use a ruby and gemset when you cd to a project directory.
Read more on project files:
After selecting Ruby work as usual:
ruby -v
gem install haml
haml
rvm 1.8.7 do gem install rspec # in the given ruby
rvm 1.8.7,1.9.2 do gem install haml # in this two rubies
rvm @global do gem install gist # in @global gemset of current ruby
RVM by default allows creating multiple environments for one ruby - called gemsets.
Gemsets can be specified together with ruby name using gemsets separator(@):
- ruby-1.9.3-p125@my-project
During installation of Ruby, RVM creates two gemsets:
- default - automatically selected when no @gemset specified: rvm use 1.9.3
- global - super gemset, inherited by all other gemsets for the given ruby
Working with gemsets:
rvm use 1.8.7 # use the ruby to manage gemsets for
rvm gemset create project_name # create a gemset
rvm gemset use project_name # use a gemset in this ruby
rvm gemset list # list gemsets in this ruby
rvm gemset delete project_name # delete a gemset
rvm 1.9.1@other_project_name # use another ruby and gemset
rvm 1.9.3@_project --create --rvmrc # use and create gemset & .rvmrc
Discouraged; make sure to read http://rvm.io/rvm/installation/
A lot of resources is available:
- in your terminal:
rvm help - https://rvm.io/
- IRC #rvm @ freenode - http://webchat.freenode.net/?channels=#rvm