Linux

https://blog.gtwang.org/linux/linux-scp-command-tutorial-examples/
https://github.com/s0md3v/nano/blob/master/README.md

docker

https://github.com/mendhak/docker-openvpn-adblock
http://taichunmin.idv.tw/blog/2018-05-23-docker-openvpn.html

C++

http://mropengate.blogspot.com/2015/07/cc-vector-stl.html

Others

https://teddysun.com/469.html