:name 的值就是 :name，我一开始都没想那么多。

Note: The Multi-User install instructions must be prefixed with the 'sudo' command. However, once the install is complete, and the instructions to add users to the rvm group is followed, the use of either sudo or rvmsudo is no longer required. The 'sudo' command is only to temporarily elevate privileges so the installer can complete it's work. If you need to use 'sudo' or 'rvmsudo' after the install is complete, some part of the install directions were not properly followed. This usually is because people execute the install as root, rather than executing the installation instructions from a non-privileged user account.

这里说用 sudo 安装跟用 root 安装还不一样，root 会导致一些问题。

正常 multi-user 模式是普通用户用 sudo 安装，然后将用户加到 rvm 组，之后不需要 sudo 或 rvmsudo。

我建议是用 single-user 模式。

#17 楼 @shangrenzhidao 用 root 安装不是装在 root 下，而是装成 multi-user 模式。我现在都用 single-user 模式了，记不太清楚要怎么弄。

root 是个特殊的用户，如果搞不清楚的话还是不要用，不过你可以趁机搞明白 root 和 sudo 跟 Linux 用户权限的问题。

Multi-User:

The rvm function will be automatically configured for every user on the system if you install with sudo. This is accomplished by loading /etc/profile.d/rvm.sh on login. Most Linux distributions default to parsing /etc/profile which contains the logic to load all files residing in the /etc/profile.d/ directory. Once you have added the users you want to be able to use RVM to the rvm group, those users MUST log out and back in to gain rvm group membership because group memberships are only evaluated by the operating system at initial login time.

https://rvm.io/rvm/install

#6 楼 @davidminaki 这更难理解了。

_, date, urlname, _ = *filename.match(/\A#{tmp_path}\/_posts\/(\d+-\d+-\d+)-(.+)(\.[^.]+)\z/)

解析 jekyll post 的文件名。

#31 楼 @fleuria 哈哈哈

https://github.com/ruby-china/ruby-china/issues

打开浏览器调试工具，看看提交的时候有没有错误。

测试

Agile Web Development with Rails 4 http://pragprog.com/book/rails4/agile-web-development-with-rails-4

#2 楼 @small_fish__ 我以前也觉得是两个东西。

用 Jekyll

编辑插 <hr> 元素然后程序处理。

#21 楼 @rasefon epub 是开放格式，mobi 只有 kindle 能看。

#12 楼 @shangrenzhidao 不客气

#10 楼 @shangrenzhidao 在 host 机编辑，在虚拟机装组件。目录同步，哪边工具方便用哪边。

config.vm.network "public_network", ip: "x.x.x.x"

启动卡住了看这里 https://github.com/mitchellh/vagrant/wiki/%60vagrant-up%60-hangs-at-%22Waiting-for-VM-to-boot.-This-can-take-a-few-minutes%22

#2 楼 @shangrenzhidao 如果你的 host 主机有两个网络接口就需要指定 bridge，你的 host 主机有两个网络接口吗？

http://docs.vagrantup.com/v2/networking/public_network.html

登陆之后怎么重启的写进脚本啊

#22 楼 @MrPasserby 工作归工作，还有业余项目呢。

#20 楼 @MrPasserby http://smacss.com/

不过还是有兴趣试试 semantic 看看这种写法会不会出错。

看来“中国自主知识产权的 XXX”还是挺有群众基础的。

#29 楼 @liwei78

你是哪队球迷

“曼联” “利物浦” “……” “……”

$79 确定要？

http://www.vagrantup.com/vmware

http://docs.vagrantup.com/v2/vmware/

没了，换成 UJS。中文第 4 版这段内容过时了。