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RVM CLI Usage

RVM comes with many options, however it has lots of defaults that are intended to make the command line API much more 'natural'.

rvm help

RVM general usage API

rvm [action] [interpreter] [options]

Where "action" is one of

use       - setup current shell to use a specific ruby version
[interpreter]
          - when used as an action it is a silent 'use'
system
reset     - remove default and current settings, exit the shell.
info      - show information for current ruby
list      - show currently installed versions
reload    - reload RVM source itself (useful after changing RVM source)
implode   - removes all ruby installations it manages, everything in ~/.rvm
get       - {stable,head} upgrades RVM to the stale or git head branches.
do        - runs a named ruby file against specified and/or all rubies

install   - install one or many ruby versions
upgrade   - install new ruby, copy gemsets, make gems pristine, remove old ruby
reinstall - remove ruby, install it, make gems pristine
uninstall - uninstall one or many ruby versions, leaves their sources
remove    - uninstall one or many ruby versions and remove their sources

And where [interpreter] is one of

ruby      - MRI/YARV Ruby (The Standard), defaults to 1.8.6
jruby     - JRuby
rbx       - rubinius
ree       - ruby Enterprise Edition
system    - use the system ruby (eg. pre-RVM state)
default   - use RVM set default ruby and system if it hasn't been set.

Better list can be found by running

rvm list

And where [options] are one of

-v|--version  - Emit RVM version loaded for current shell
-h|--help     - Emit this output and exit
--default     - when used with ruby selection, sets a default ruby for new shells.
--debug       - Toggle debug mode on for very verbose output.
--force       - Force install, removes old install & source before install.
--all         - Used with 'rvm list' to display 'most' available versions.
--summary     - Used with 'do' to print out a summary of the commands run.
--with*       - Forwarded to `./configure`
-C            - custom configure options, comma separated, double quote
                args that need quoting, default: --enable-shared=true

Usage Notes: