(2015-04-09)
This is a lightly modified script I found somewhere. I'm recording it here because the location where I found it was exporting it with "smart quotes" which made it unrunable.
Because I wanted to run this locally on a bunch of computers with SQL Server on it, I modified the so that it did the dump of databases on the local running computer. I also modified it so that the date was created in the directory structure, not the file names.
@ECHO OFF
SETLOCALREM Get date in format YYYY-MM-DD (assumes the locale is the United States)
FOR /F "tokens=1,2,3,4 delims=/ " %%A IN ('Date /T') DO SET NowDate=%%D-%%B-%%CREM Build a list of databases to backup
SET DBList=%SystemDrive%\SQLDBList.txt
SqlCmd -E -S %ComputerName% -h-1 -W -Q "SET NoCount ON; SELECT Name FROM master.dbo.sysDatabases WHERE [Name] NOT IN ('master','model','msdb','tempdb')" > "%DBList%"mkdir d:\Backup
mkdir d:\Backup\%NowDate%
REM Backup each database, prepending the date to the filename
FOR /F "tokens=*" %%I IN (%DBList%) DO (
ECHO Backing up database: %%I
SqlCmd -E -S %ComputerName% -Q "BACKUP DATABASE [%%I] TO Disk='D:\Backup\%NowDate%\%%I.bak'"
ECHO.
)REM Clean up the temp file
IF EXIST "%DBList%" DEL /F /Q "%DBList%"ENDLOCAL