debian下安装rvm配置ruby环境

先安装rvm

curl -L https://get.rvm.io | bash -s stable

source ~/.rvm/scripts/rvm

安装必须的东西

rvm requirements

看看装哪个ruby

rvm list known

2.1.3貌似最新

rvm install ruby-2.1.3

设置默认

rvm use ruby-2.1.3 --default

如果看到

RVM is not a function, selecting rubies with ‘rvm use ...‘ will not work.

You need to change your terminal emulator preferences to allow login shell.
Sometimes it is required to use `/bin/bash --login` as the command.
Please visit https://rvm.io/integration/gnome-terminal/ for an example.

则在.bashrc添加

source ~/.rvm/scripts/rvm

重启bash

安装rubygems，不过理论上应该已经包含在ruby里面了

rvm rubygems current

修改gem的源到淘宝
先看看原来的

gem sources -l

删除

gem sources --remove https://rubygems.org/
gem sources -a http://ruby.taobao.org/

下面直接安装rails

gem install rails -V

补充个别人写的换源的工具

gem install chsource

用法：

rails new helloWorld --skip-bundle
cd helloWorld
chsource taobao
bundle install