MariaDB Shell是一个命令行工具，它统一了MariaDB数据库产品的故障排除和管理。 MariaDB Shell 23.03.2于2023-05-05发布。 这个版本是一个技术预览版，不应该在生产环境中使用。
安装
通过页面 https://mariadb.com/downloads/tools/ 下载安装包 将安装包上传至服务器后，直接进行 yum 安装，输出如下：
$ sudo yum install mariadb-shell-23.03-2.el7.x86_64.rpm
Loaded plugins: changelog, fastestmirror, product-id, search-disabled-repos, subscription-manager, verify
This system is not registered with an entitlement server. You can use subscription-manager to register.
Examining mariadb-shell-23.03-2.el7.x86_64.rpm: mariadb-shell-23.03-2.el7.x86_64
Marking mariadb-shell-23.03-2.el7.x86_64.rpm to be installed
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction, or "yum-complete-transaction --cleanup-only" and "yum history redo last", first to finish them. If those don't work you'll have to try removing/installing packages by hand (maybe package-cleanup can help).
--> Running transaction check
---> Package mariadb-shell.x86_64 0:23.03-2.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==================================================================================================================================================================================================================================
Package Arch Version Repository Size
==================================================================================================================================================================================================================================
Installing:
mariadb-shell x86_64 23.03-2.el7 /mariadb-shell-23.03-2.el7.x86_64 213 M
Transaction Summary
==================================================================================================================================================================================================================================
Install 1 Package
Total size: 213 M
Installed size: 213 M
Is this ok [y/d/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : mariadb-shell-23.03-2.el7.x86_64 1/1
Verifying : mariadb-shell-23.03-2.el7.x86_64 1/1
Installed:
mariadb-shell.x86_64 0:23.03-2.el7
Complete!msh
msh 提供了若干命令，演示如下， 查看版本信息：
MariaDB (test) ? sys version
MariaDB Shell 23.03.2
Copyright (c) 2022 MariaDB plc and others.
MariaDB Server version: 10.11.3-MariaDB
Connection method: localhost using socket
UNIX socket used: /var/lib/mysql/mysql.sock
Uptime: 13 days, 22:53:34
Threads Created: 10
Questions: 57423
Opened Tables: 157
Open Tables: 124
Queries per second ave: 0.047630查看当前表：
MariaDB (test) ? ls
┌────────────────┐
│ Tables_in_test │
├────────────────┤
│ a │
│ t1 │
│ t12 │
│ t_inet4 │
│ t_uuid │
│ test_insert_id │
└────────────────┘
7 rows in set (0.001258).
MariaDB (test) ? dir
┌────────────────┐
│ Tables_in_test │
├────────────────┤
│ a │
│ t1 │
│ t12 │
│ t_inet4 │
│ t_uuid │
│ test_insert_id │
└────────────────┘
7 rows in set (0.000777).可以将输出格式转为 sqlplus ：
MariaDB (test) ? output sqlplus
Output format changed to sqlplus
MariaDB (test) ? ls
Tables_in_test
--------------------
a
t1
t12
t_inet4
t_uuid
test_insert_id
6 rows in set (0.000960).MariaDB Shell的第一个版本有一些很棒的新特性，比如能够在内存存储引擎缓存中预热，比如InnoDB缓冲池。
MariaDB (test) ? warm t1
Warning: Large tables will take a significant amount of time to warm.
test.t1 has been read into memory.
MariaDB (test) ? warm
Warning: Large tables will take a significant amount of time to warm.
test.t_inet4 has been read into memory.
test.t_uuid has been read into memory.
test.t12 has been read into memory.
test.t1 has been read into memory.
test.a has been read into memory.
test.test_insert_id has been read into memory.当然，msh 还提供了若干系统命令，命令列表如下：
MariaDB (test) ? sys
ADMIN, SYS or SYSTEM commands are the gateway to all things administration-management for MariaDB products.
Currently available commands for this tool are:
create, drop, shutdown, reload, refresh, version, processlist, status, kill, debug, variables, flush-logs, flush-hosts, flush-tables, password, ping, extended-status, replication-status, replica-status, all-replication-status, all-replica-status, flush-status, flush-privileges, start-slave, stop-slave, start-all-slaves, stop-all-slaves, start-replica, stop-replica, start-all-replicas, stop-all-replicas, flush-threads, old-password, flush-binary-log, flush-engine-log, flush-error-log, flush-general-log, flush-relay-log, flush-slow-log, flush-table-statistics, flush-index-statistics, flush-user-statistics, flush-client-statistics, flush-user-resources, flush-all-status, flush-all-statistics, flush-ssl, load-buffer-pool, dump-buffer-pool, memory-config, pre-slice