修改MySQL datadir後記得要修改apparmor設定

Remember to modify apparmor after change Mysql datadir
https://ubuntuforums.org/showthread.php?t=831147

[ubuntu] Config nano

Config file location in ubuntu: /etc/nanorc

1. Show line numbers

Uncomment "set linenumbers"

2. Show full line

Comment "set nowrap"
Uncomment "set softwrap"

rsync via ssh

rsync -avz -e "ssh -p $portNumber" user@remoteip:/path/to/files/ /local/path/