在上面的@foxidrive的帮助下，我设法获得了想要的文件夹日期，它们是YYYY-MM-DD HH-MIN-SEC。
由于adityasatrio的MySQL Backup Batch
script，在这些文件夹中存储了gzip压缩的.sql数据库。
借助此答案中的@
Magoo，https：//stackoverflow.com/a/17521693/1010918设法删除了所有文件夹（nameDir），
同时保留 了最新的N个文件夹（nameDir），并且也 没有 触摸任何可能在目录（backupDir）中。
这是完整的工作脚本。
随意删除任何出现
pause并和
echo对 不 上有什么命令提示符里面去。
此外，将其添加到Windows Task Scheduler中，您将获得一个针对使用MySQL数据库的本地开发环境的可靠备份解决方案。
请感谢帮助我完成此任务的人员。没有你们，我不得不只使用昂贵的Windows应用程序来本地保存MySQL数据库。
（..以及下一个技巧，如果备份.sql文件时出现错误，我们将通过电子邮件将错误日志发送给自己。.但这又是另一个问题和故事。.）
@echo off set dbUser=root set dbPassword=root set "backupDir=D:MySQLDumps" set "mysqldump=C:wampbinmysqlmysql5.6.17binmysqldump.exe" set "mysqlDataDir=C:wampbinmysqlmysql5.6.17data" set "zip=C:Program Files7-Zip7z.exe" :: https://stackoverflow.com/a/31789045/1010918 foxidrive's answer helped me get the folder with the date and time I wantedrem The four lines below will give you reliable YY DD MM YYYY HH Min Sec MS variables in XP Pro and higher.for /f "tokens=2 delims==" %%a in ('wmic OS Get localdatetime /value') do set "dt=%%a"set "YY=%dt:~2,2%" & set "YYYY=%dt:~0,4%" & set "MM=%dt:~4,2%" & set "DD=%dt:~6,2%"set "HH=%dt:~8,2%" & set "Min=%dt:~10,2%" & set "Sec=%dt:~12,2%" & set "MS=%dt:~15,3%" set "dirname=%YYYY%-%MM%-%DD% %HH%-%Min%-%Sec%" :: remove echo here if you like echo "dirName"="%dirName%" :: switch to the "data" folder pushd "%mysqlDataDir%" :: create backup folder if it doesn't exist if not exist "%backupDir%%dirName%" mkdir "%backupDir%%dirName%" :: iterate over the folder structure in the "data" folder to get the databases for /d %%f in (*) do ( :: remove echo here if you like echo processing folder "%%f" "%mysqldump%" --host="localhost" --user=%dbUser% --password=%dbPassword% --single-transaction --add-drop-table --databases %%f > "%backupDir%%dirName%%%~nxf.sql" "%zip%" a -tgzip "%backupDir%%dirName%%%~nxf.sql.gz" "%backupDir%%dirName%%%~nxf.sql" del "%backupDir%%dirName%%%~nxf.sql" ) popd :: delete all folders but the latest 2 :: https://stackoverflow.com/a/17521693/1010918 Magoo's answer helped me get what I wanted to do with the folders :: for /f "skip=2 delims=" %G in ('dir /B /ad-h /o-d') DO echo going to delete %G :: below following my version with rd (remove dir) command and /s and /q :: remove echo before rd to really delete the folders in question!! :: attention they will be deleted with content in them!! :: change the value after skip= to what you like, this is the amount of latest folders to keep in your backup directory for /f "skip=2 delims=" %%a in (' dir "%backupDir%" /b /ad-h /o-d') do echo rd /s /q "%backupDir%%%a":: remove pause here if you like and add the file to Windows Task Manager pause
