@echo off
rem LosaDev 2014: backup.bat [folder] [server]   (defaults: D:\LosaBackup, .\SQLEXPRESS)
setlocal
set DIR=%~1
if "%DIR%"=="" set DIR=D:\LosaBackup
set SRV=%~2
if "%SRV%"=="" set SRV=.\SQLEXPRESS
if not exist "%DIR%" mkdir "%DIR%"
sqlcmd -S "%SRV%" -E -b -v BACKUP_DIR="%DIR%" -i "%~dp0backup.sql"