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user@ubuntu:~$ sudo apt install vim
Reading package lists... Done
Building dependency tree
Reading state information... Done
vim is already the newest version (2:7.4.1689-3ubuntu1.2).
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up mysql-server-5.7 (5.7.22-0ubuntu0.16.04.1) ...
Checking if update is needed.
This installation of MySQL is already upgraded to 5.7.22, use --force if you still need to run mysql_upgrade

sudo apt install vim
,,,
vim is already the newest version (2:7.4.1689-3ubuntu1.2).

1. vim 套件 已經安裝 而且是最新版本
意思是 不需要 再安裝

Setting up mysql-server-5.7 (5.7.22-0ubuntu0.16.04.1) ...
Checking if update is needed.
This installation of MySQL is already upgraded to 5.7.22, use --force if you still need to run mysql_upgrade

2. mysql-server-5.7 套件已是最新版本 不需要再被更新
新手 不須再理會該訊息
2-1. 如果有興趣 可以參閱
2-1-1. https://blog.longwin.com.tw/2010/10/mys ... inux-2010/
是早期文章 是否還適用 ? 須再查證
2-1-2. https://dev.mysql.com/doc/relnotes/mysq ... -7-20.html
Packaging Notes
mysqlcheck was missing in the MySQL Server Docker image, which prevented mysql_upgrade from running. (Bug #26400146, Bug #86968)