WSL介绍：
Windows Subsystem for Linux
在win10下运行的linux子系统
https://zhuanlan.zhihu.com/p/34885179
WSL安装配置：
https://zhuanlan.zhihu.com/p/34885182
WSL在本机环境的路径：
C:\Users\你的用户名\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc\LocalState\rootfs
命名问题：
Enter new UNIX username: Abby
adduser: Please enter a username matching the regular expression configured
via the NAME_REGEX[_SYSTEM] configuration variable. Use the `--force-badname'
option to relax this check or reconfigure NAME_REGEX.
In Ubuntu systems, the regex defining acceptable user names is found in /etc/adduser.conf.
A typical regex (found on my system) is:
NAME_REGEX="^[a-z][-a-z0-9_]*\$"case-sensitive 所以首字幕不能是大写
参考：https://askubuntu.com/questions/232742/failed-to-create-user-due-to-regular-expression-error
