XCOPY日期備份

參考值如下

FOR /F "tokens=1-3 delims=/ " %%a IN ("%date%") DO (SET _today=%%a%%b%%c)
XCOPY d:\.    M:\DAY\%_today% /D/K/E/Y/C/I/H/S
attrib -S -h m:\day\* /D /S
XCOPY M:\DAY\%_today%\.   X:\DAY\%_today% /D/K/E/Y/C/I/H/S
attrib -s -h m:\day\* /D /S