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## Usage
$ rvm [all|all-gemsets|<ruby>,...|<path>] [--verbose|--summary|--yaml|--json] do <command> ...
$ rvm in <path> do <some-command> ...
Executes arbitrary commands against given a set of rvm environments.
Without additional flags it will exec the command directly without printing
out extra rvm information.
## Selectors:
- `all` - execute command in the default gemset of all rubies
- `all-gemsets` - execute command in the all gemset for all rubies
- `<ruby>,...` - list of rubies to use, allows short versions or gemsets
- `<path>` - use ruby from the given path/project
## Modifiers:
- `in` - works with path and will additionally `cd` to the given directory
- `--verbose` - display one line details about ruby/gemset
- `--summary` - hide output and display summary of failures/success list only
- `--yaml` - hide output and display yaml summary of failures/success list only
- `--json` - hide output and display json summary of failures/success list only
- `--summary` - print out a summary of the commands run
- `-S` - specify the script file to load and run
## Examples:
To execute `ruby -v` against all installed rubies and aliases, you would run:
$ rvm all do ruby -v
If you want to execute it against a specific ruby (without extra logging / data
printed by rvm as is done with normal set operations), you can instead do:
$ rvm ree do ruby -v
Since it is a set operation, normal ruby specifiers will work. As an example, to run
`gem list` against **1.9.2** and **1.8.7** and prefix with ruby name, you would run:
$ rvm 1.9.2,1.8.7 --verbose do gem list
Or, to execute `gem env` against all gemsets:
$ rvm all-gemsets do gem env
To execute `which ruby` in the current directory, loading a `.rvmrc`:
$ rvm . do which ruby
To execute `rake test` in the project directory, loading a `.rvmrc`:
$ rvm in /path/to/project do rake test
For more information, refer to the rvm set operations.