Windows 2019 .BAT 脚本中的奇怪行为

我必须将备份从 Linux MariaDB 恢复到 Windows MariaDB，PowerBI 网关将在其中导入其数据。“mariabackup”是 MariaDB 的物理备份工具。但要恢复它，目标文件夹 ( %programfiles%\MariaDB 10.3\data\) 必须为空。

由于rmdir /S /Q "%programfiles%\MariaDB 10.3\data\将删除“数据”目录（我不想要的！！！），我一直在努力避免在以下脚本（uncompress.bat）中出现这种不需要的行为：

rem Uncompress the backup sent by the linux server
rem and imports it to MariaDB
rem Gilberto Martins - 19/11/2021

rem Uncompress the backup
rem The backup path is "mnt\external01\"
tar -xf c:\users\mariabkp\bkp.tgz -C c:\users\mariabkp\

rem Stop MariaDB
net stop mysql

rem Prepare the Backup for Restoration
"C:\Program Files\MariaDB 10.3\bin\mariabackup.exe" --prepare --target-dir="c:\users\mariabkp\mnt\external01\backup"\

rem Erase the Database files
del /q "C:\Program Files\MariaDB 10.3\data\*.*"
FOR /D %p IN ("c:\Program Files\MariaDB 10.3\data\*") DO rmdir "%p" /s /q

rem Import backup to MariaDB
"C:\Program Files\MariaDB 10.3\bin\mariabackup.exe" --move-back --target-dir="c:\users\mariabkp\mnt\external01\backup"\

rem Restore MariaDB conf file
copy "c:\Users\Administrator\my.ini" "c:\Program Files\MariaDB 10.3\data" /y

rem Start MariaDB
net start mysql

我工作得很好，直到我必须删除要恢复的文件，正如您在前面看到的那样：

Microsoft Windows [Version 10.0.17763.1935]
(c) 2018 Microsoft Corporation. All rights reserved.

C:\Users\Administrator>uncompress.bat

C:\Users\Administrator>rem Uncompress the backup sent by the linux server

C:\Users\Administrator>rem and imports it to MariaDB

C:\Users\Administrator>rem Gilberto Martins - 19/11/2021

C:\Users\Administrator>rem Uncompress the backup

C:\Users\Administrator>rem The backup path is "mnt\external01\backup"

C:\Users\Administrator>tar -xf c:\users\mariabkp\bkp.tgz -C c:\users\mariabkp\

C:\Users\Administrator>rem Stop MariaDB

C:\Users\Administrator>net stop mysql
The MySQL service is stopping.
The MySQL service was stopped successfully.


C:\Users\Administrator>rem Prepare the Backup for Restoration

C:\Users\Administrator>"C:\Program Files\MariaDB 10.3\bin\mariabackup.exe" --prepare --target-dir="c:\users\mariabkp\mnt\external01\backup"\
C:\Program Files\MariaDB 10.3\bin\mariabackup.exe based on MariaDB server 10.3.31-MariaDB Win64 (AMD64)
[00] 2021-11-22 16:26:29 cd to c:\users\mariabkp\mnt\external01\backup\
[00] 2021-11-22 16:26:29 open files limit requested 0, set to 0
[00] 2021-11-22 16:26:29 This target seems to be not prepared yet.
[00] 2021-11-22 16:26:29 mariabackup: using the following InnoDB configuration for recovery:
[00] 2021-11-22 16:26:29 innodb_data_home_dir = .
[00] 2021-11-22 16:26:29 innodb_data_file_path = ibdata1:12M:autoextend
[00] 2021-11-22 16:26:29 innodb_log_group_home_dir = .
[00] 2021-11-22 16:26:29 Starting InnoDB instance for recovery.
[00] 2021-11-22 16:26:29 mariabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter)
2021-11-22 16:26:29 0 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2021-11-22 16:26:29 0 [Note] InnoDB: Uses event mutexes
2021-11-22 16:26:29 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2021-11-22 16:26:29 0 [Note] InnoDB: Number of pools: 1
2021-11-22 16:26:29 0 [Note] InnoDB: Using SSE2 crc32 instructions
2021-11-22 16:26:29 0 [Note] InnoDB: Initializing buffer pool, total size = 100M, instances = 1, chunk size = 100M
2021-11-22 16:26:29 0 [Note] InnoDB: Completed initialization of buffer pool
2021-11-22 16:26:29 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=7032026737757
2021-11-22 16:26:29 0 [Note] InnoDB: Starting final batch to recover 68 pages from redo log.
[00] 2021-11-22 16:26:30 Last binlog file , position 0
[00] 2021-11-22 16:26:31 completed OK!

C:\Users\Administrator>rem Erase the Database files

C:\Users\Administrator>del /q "C:\Program Files\MariaDB 10.3\data\*.*"
\Program was unexpected at this time.

C:\Users\Administrator>FOR /D \Program Files\MariaDB 10.3\data\*") DO rmdir "p" /s /q

C:\Users\Administrator>

我的问题：

1. 为什么\Program was unexpected at this time.当我尝试时出现消息del /q "C:\Program Files\MariaDB 10.3\data\*.*"

2. 为什么原始指令FOR /D %p IN ("c:\Program Files\MariaDB 10.3\data\*") DO rmdir "%p" /s /q回显为FOR /D \Program Files\MariaDB 10.3\data\*") DO rmdir "p" /s /q？看起来（但我不确定）它可能与“%p”变量有关。

3. 为什么剩下的指令（导入备份、恢复 my.ini 和启动 MariaDB）没有执行？

我不得不承认，我是 Windows 脚本的新手。而且我认为没有必要为一个脚本安装完整的 Python3！

更新：我试图在“准备备份以进行恢复”之前“擦除数据库文件”，但我得到了相同的结果，即它在“FOR”指令处停止。