我需要安装RVM才能将我的Ruby副本更新到2.0.0
我尝试过以下命令：
\curl -L https://get.rvm.io | bash
但它不起作用，我收到以下错误：
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 13784 100 13784 0 0 34419 0 --:--:-- --:--:-- --:--:-- 34419
Downloading RVM from wayneeseguin branch master
bash: line 133: which: command not found
bash: line 116: rvm_error: command not found
Could not download 'https://github.com/wayneeseguin/rvm/archive/master.tar.gz'.
curl returned status '200'.