Backup MySQL databases in separate gzipped sql files on Windows

mysql-backup-windows.bat

@echo off

set dbUser=root
set dbPassword=password
set backupDir="C:\Documents and Settings\user\Desktop\backup\mysql"
set mysqldump="C:\Program Files\MySQL\MySQL Workbench 5.2 CE\mysqldump.exe"
set mysqlDataDir="C:\Documents and Settings\All Users\Application Data\MySQL\MySQL Server 5.1\data"
set zip="C:\Program Files\7-Zip\7z.exe"

:: get date
for /F "tokens=2-4 delims=/ " %%i in ('date /t') do (
	set mm=%%i
	set dd=%%j
	set yy=%%k
)

:: get time
for /F "tokens=5-8 delims=:. " %%i in ('echo.^| time ^| find "current" ') do (
	set hh=%%i
	set mm=%%j
)

set dirName=%yy%%mm%%dd%_%hh%%mm%

:: switch to the "data" folder
pushd %mysqlDataDir%

:: iterate over the folder structure in the "data" folder to get the databases
for /d %%f in (*) do (

	if not exist %backupDir%\%dirName%\ (
		mkdir %backupDir%\%dirName%
	)

	%mysqldump% --host="localhost" --user=%dbUser% --password=%dbPassword% --single-transaction --add-drop-table --databases %%f > %backupDir%\%dirName%\%%f.sql

	%zip% a -tgzip %backupDir%\%dirName%\%%f.sql.gz %backupDir%\%dirName%\%%f.sql

	del %backupDir%\%dirName%\%%f.sql

)