ruby安装及gem源配置

简介

可以通过源码、RVM或当前系统自带的包管理(比如debian的apt-get)工具安装

RVM

gpg2 --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
\curl -sSL https://get.rvm.io | bash -s stable

安装完成后会出现如下日志：

Installing RVM to /usr/local/rvm/
Installation of RVM in /usr/local/rvm/ is almost complete:

  * First you need to add all users that will be using rvm to 'rvm' group,
    and logout - login again, anyone using rvm will be operating with `umask u=rwx,g=rwx,o=rx`.

  * To start using RVM you need to run `source /etc/profile.d/rvm.sh`
    in all your open shell windows, in rare cases you need to reopen all shell windows.
  * Please do NOT forget to add your users to the rvm group.
     The installer no longer auto-adds root or users to the rvm group. Admins must do this.
     Also, please note that group memberships are ONLY evaluated at login time.
     This means that users must log out then back in before group membership takes effect!
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根据提示执行：

source /etc/profile.d/rvm.sh

列出已知Ruby版本：

rvm list known

# 2.4.6
rvm install 2.4.6

修改rubygem为国内源：

gem sources --add https://gems.ruby-china.com/ --remove https://rubygems.org/
gem sources -l
# output: https://gems.ruby-china.com
# 确保只有 gems.ruby-china.com

Debian

我使用的是国内的deepin系统,它是基于Debian的系统,可以直接使用sudo apt-get install ruby-full来安装.