bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)
rvm get latest
rvm list known
rvm --force install 1.9.2
rvm use 1.9.2
rvm info
rvm use 1.9.2@danil --default
rvm gemset create gemset_foo
rvm use 1.8.7@gemset_foo
rvm gemset list
rvm gemset copy 1.8.7@avers_prohq 1.8.7@avers_prohq_accounting
rvm gemset delete avers_prohq_accounting