c:>echo %date% 2010-07-15 星期四 c:>echo %date:~0,4% 2010 c:>echo %date:~-3% 星期四 c:>echo %date:~5,5%%date:~8,2% 0715 c:>echo %date:~0,4%%date:~5,2%%date:~8,2% 20100715 c:> rename A.txt %date:~5,5%%date:~8,2%.txt 就會將A.TXT更名為 "系統日期 [...]]]> 近日要使用WINDOWS備份，每天要依日期做檔案區分，就想到依日期處理檔名方式，運用下列方式應該就可以達到需求。

=====================================================

參考出處:http://ubuntufish.blogspot.com/2010/07/dos-rename.html

DOS rename+日期格式

c:>echo %date%
2010-07-15 星期四
c:>echo %date:~0,4%
2010
c:>echo %date:~-3%
星期四
c:>echo %date:~5,5%%date:~8,2%
0715
c:>echo %date:~0,4%%date:~5,2%%date:~8,2%
20100715
c:> rename A.txt %date:~5,5%%date:~8,2%.txt
就會將A.TXT更名為 "系統日期 MMDD".TXT

=====================================================

文章出處：http://blog.ntut.idv.tw/2006/07/wos-windowsxp-kill-process-via-cmd.html