DockerコンテナのMySQLバージョン番号を表示します.

DockerコンテナのMySQLのバージョン番号の表示

 #            docker   mysql      。
[root@localhost ~]# docker exec -it mysql_geek /bin/bash

# exec —>     。
# -i    —>            。
# -t    —>   
# 		   /bin/bash         ，  bash          。

root@c80d23a10c46:/# ls
bin   docker-entrypoint-initdb.d  home	 media	proc  sbin  tmp
boot  entrypoint.sh		  lib	 mnt	root  srv   usr
dev   etc				  lib64  opt	run   sys   var

root@c80d23a10c46:/# mysql -uroot -proot
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 51
Server version: 8.0.19 MySQL Community Server - GPL

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> 

MySQLにログインすると8.0.19のバージョンが表示されます.