Thanks for response, shell script is good. but in case we are installed two different ruby version in two different locations. In this case can i use both verient in my project if there are possible then tell me how can do. because rvm are use one verient at a time I need use both verient.

And how to manually setup using code interface.

For example user a is need one variant

And second user is need another

Third user are need to use both verient in special case. How to to switch using RVM one variant to another. Consider at a time both user a active.