SQLCMD-E -S YOUR_SERVER-Q "ALTER DATABASE [YOUR_DB] SET AUTO_SHRINK ON, RECOVERY SIMPLE;"
SQLCMD-E -S YOUR_SERVER-Q "BACKUP DATABASE [YOUR_DB] TO DISK='Your_disc:\the_path_to_the_file\Сustom_name_%DATE:~6,4%-%DATE:~3,2%-%DATE:~0,2%.bak' WITH FORMAT, STATS=25, STOP_ON_ERROR;"