Usage

  rvm [Flags] [Options] Action [Implementation[,Implementation[,...]]

Flags

  --head        - with update, updates rvm to git head version.
  --rubygems    - with update, updates rubygems for selected ruby
  --default     - with ruby select, sets a default ruby for new shells.
  --debug       - Toggle debug mode on for very verbose output.
  --trace       - Toggle trace mode on to see EVERYTHING rvm is doing.
  --force       - Force install, removes old install & source before install.
  --summary     - Used with rubydo to print out a summary of the commands run.
  --latest      - with gemset --dump skips version strings for latest gem.
  --gems        - with uninstall/remove removes gems with the interpreter.
  --docs        - with install, attempt to generate ri after installation.
  --reconfigure - Force ./configure on install even if Makefile already exists.


Options

  -v|--version    - Emit rvm version loaded for current shell
  -l|--level      - patch level to use with rvm use / install
     --prefix     - path for all rvm files (~/.rvm/), with trailing slash!
     --bin        - path for binaries to be placed (~/.rvm/bin/)
     --source     - src directory to use (~/.rvm/src/)
     --archives   - directory for downladed files (~/.rvm/archives/)
  -S              - Specify a script file to attempt to load and run (rubydo)
  -e              - Execute code from the command line.
  -G              - root gem path to use
  --gems          - Used to set the 'gems_flag', use with 'remove' to remove gems
  --archive       - Used to set the 'archive_flag', use with 'remove' to remove archive
  --patch         - With MRI Rubies you may specify one or more full paths to patches
                    for multiple, specify comma separated:
                    --patch /.../.../a.patch[%prefix],/.../.../.../b.patch
                    'prefix' is an optional argument, which will be bypassed
                    to the '-p' argument of the 'patch' command. It is separated
                    from patch file name with '%' symbol.
  -C|--configure  - custom configure options. If you need to pass several configure
                    options then append them comma separated: -C --...,--...,--...
  --nice          - process niceness (for slow computers, default 0)
  --ree-options   - Options passed directly to ree's './installer' on the command line.

Action

  * usage   - show this usage information
  version   - show the rvm version installed in rvm_path
  use       - setup current shell to use a specific ruby version
  reload    - reload rvm source itself (useful after changing rvm source)
  implode   - (seppuku) removes the rvm installation completely.
              This means everything in $rvm_path (~/.rvm).
              This does not touch your profiles, which is why
              there is an if around the sourcing scripts/rvm.
  update    - upgrades rvm to the latest version.
              (If you experience bugs try this first with --head)
  reset     - remove current and stored default & system settings.
              (If you experience odd behavior try this second)
  info      - show the *current* environment information for current ruby
  debug     - show info plus additional information for common issues

  install   - install one or many ruby versions
              See also: http://rvm.beginrescueend.com/rubies/installing/
  uninstall - uninstall one or many ruby versions, leaves their sources
  remove    - uninstall one or many ruby versions and remove their sources

  wrapper   - generates a set of wrapper executables for a given ruby with the
              specified ruby and gemset combination. Used under the hood for
              passenger support and the like.

  cleanup   - Lets you remove stale source folders / archives and other miscellaneous
              data associated with rvm.

  ruby      - runs a named ruby file against specified and/or all rubies
  gem       - runs a gem command using selected ruby's 'gem'
  rake      - runs a rake task against specified and/or all rubies
  tests     - runs 'rake test' across selected ruby versions
  specs     - runs 'rake spec' across selected ruby versions
  monitor   - Monitor cwd for testing, run `rake {spec,test}` on changes.

  gemset    - gemsets: http://rvm.beginrescueend.com/gemsets/

  gemdir    - display the path to the current gem directory (GEM_HOME).
  srcdir    - display the path to rvm source directory (may be yanked)

  fetch     - Performs an archive / src fetch only of the selected ruby.
  list      - show currently installed rubies, interactive output.
              http://rvm.beginrescueend.com/rubies/list/
  package   - Install a dependency package {readline,iconv,zlib,openssl}
              http://rvm.beginrescueend.com/packages/
  notes     - Display notes, with operating system specifics.

  snapshot  - Let's your backup / restore an rvm installation in a lightweight manner.
  
  migrate   - Let's you migrate all gemsets from one ruby to another.

Implementation

  * ruby    - MRI/YARV Ruby (The Gold Standard) {1.8.6,1.8.7,1.9.1,1.9.2...}
  jruby     - JRuby, Ruby interpreter on the Java Virtual Machine.
  rbx       - Rubinius
  ree       - Ruby Enterprise Edition, MRI Ruby with several custom
              patches for performance, stability, and memory.
  macruby   - MacRuby, insanely fast, can make real apps (Mac OS X Only).
  maglev    - GemStone Ruby, awesome persistent ruby object store.
  ironruby  - IronRuby, NOT supported yet. Looking for volunteers to help.
  mput      - shyouhei(mput)'s github repository, popular in Japan :)
  system    - use the system ruby (eg. pre-rvm state)
  default   - use rvm set default ruby and system if it hasn't been set.
              http://rvm.beginrescueend.com/rubies/default/


Resources:

  http://rvm.beginrescueend.com/
  https://www.pivotaltracker.com/projects/26822