Really, I don't know what happened. Excuse me if this question is so NOOB, but I can't find the solution for this problem.
-bash: rvm: command not found
I tried this
curl -L https://get.rvm.io | bash -s -- --version latest
but still nothing I need to see the ruby version for use the simplecov because it not works with older version from 1.9
It might because the terminal not having rvm shell configuration loaded.
Try following from your terminal:
$ source ~/.rvm/scripts/rvm
$ type rvm | head -n 1
If the output is:
rvm is a function
You may need to add "source ~/.rvm/scripts/rvm" to your ~/.bash_profile file