运算符

标识符关键字

输入输出

变量和类型

vim

scp-远程复制

人生苦短，我用python

linux 命令

资料汇总

https://coolshell.cn/articles/12052.html

https://mp.weixin.qq.com/s/UsOr9RR4WSqHvt5rZaf0uQ hadoop

https://mp.weixin.qq.com/s/JDDTTy6QfZtwz547M88GMQ

https://mp.weixin.qq.com/s/4rnJh5OJ1DjgB1OJNXx1QA

http://hadoop.apache.org/docs/stable/hadoop-project-dist

http://book.51cto.com/art/201312/422044.htm RPC说明

https://github.com/Snailclimb/JavaGuide/blob/master/docs/java/Java%E5%9F%BA%E7%A1%80%E7%9F%A5%E8%AF%86.md

https://blog.csdn.net/jameslvt/article/details/81348499

面试题