UML:

https://www.visual-paradigm.com/cn/guide/uml-unified-modeling-language/what-is-uml/

网页在线：

https://www.processon.com/
https://app.diagrams.net/

https://excalidraw.com/
mac客户端：EdrawMax

 

GFM(MardDown):

https://www.zybuluo.com/techird/note/46064

 

AQS：

https://zhuanlan.zhihu.com/p/378219920

 

并发工具：JMeter

 

 

远程上传下载文件
本地物理机上传文件到远程服务器：
scp -r local_folder remote_username@remote_ip:remote_folder
eg：scp -P5860 hosts.txt dev@10.1.xx.xx:/tmp/hosts.txt
从远程服务器下载文件到本地：
scp -r remote_username@remote_ip:remote_folder local_folder
scp -v -P5860 dev@10.1.xx.xx:/tmp/puppet.log puppet.log