工具网址（留言收藏加入）

1.ssh连接gitHub   https://help.github.com/en/github/authenticating-to-github/connecting-to-github-with-ssh

2.centos最常用命令 https://blog.csdn.net/taiyang1987912/article/details/46471341

3.分析cpu和内存占用情况 
https://www.cnblogs.com/maohuidong/p/9313729.html
https://www.cnblogs.com/owenma/p/8561792.html
https://blog.csdn.net/lengyue309/article/details/80590119

4.mac快捷键 

https://support.apple.com/zh-cn/HT201236

5.mac安装homebrew工具  https://www.jianshu.com/p/a89d8b39e50d

6.mac下redis的简单操作：https://www.cnblogs.com/fanshu/p/7650563.html