柚子快报邀请码778899分享：一段批处理脚本(for 嵌套)

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R:\>dir 20170619\INV*.jpg 驱动器 R 中的卷是 新加卷 卷的序列号是 3E8F-427A R:\20170619 的目录2017-06-19  11:07           159,232 INV_00083127_18_5000005628_104616884_730902_001_145453.jpg2017-06-19  11:07           159,232 INV_00083127_18_5000005628_104616884_730903_001_145451.jpg2017-06-19  13:55           313,689 INV_00160210_1_2052273001_000390931_689609_001_135633.jpg2017-06-19  14:22           295,899 INV_00280566_1_2033012003_104611169_724697_001_144845.jpg2017-06-19  14:22           302,428 INV_00280635_1_2033012003_104618040_729760_001_144831.jpg2017-06-19  14:22           300,046 INV_00280779_1_2033012003_3160060115_730413_001_144815.jpg2017-06-19  14:22           293,478 INV_00280780_1_2033012003_104608132_721592_001_144722.jpg2017-06-19  11:06           154,666 INV_00465220_18_0000143436_104602580_730772_001_145518.jpg2017-06-19  14:22           307,641 INV_00470110_1_2251011001_3170241511_730220_001_145329.jpg2017-06-19  14:22           302,693 INV_00470111_1_2251011001_3170241521_729798_001_145315.jpg2017-06-19  14:22           309,057 INV_00470113_1_2251011001_104620685_730084_001_145344.jpg2017-06-19  14:22           303,410 INV_00470148_1_2251011001_3070121522_729778_001_145301.jpg2017-06-19  14:22           303,410 INV_00470148_1_2251011001_3070121522_730221_001_145301.jpg2017-06-19  14:22           301,973 INV_00470167_1_2251011001_3090041511_714462_001_145039.jpg2017-06-19  14:22           304,724 INV_00470175_1_2251011001_4110141911_730103_001_145242.jpg2017-06-19  14:18           326,760 INV_00479189_1_2011012030_104607136_729135_001_142610.jpg2017-06-19  14:18           326,615 INV_00535438_1_5000001381_3192094314_716531_001_142416.jpg2017-06-19  14:18           325,687 INV_00542079_1_2211012050_104617955_729006_001_142444.jpg

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可以看到，按日期生成了目录。以20170619目录下的文件举例，前两个文件其实大小都一样，是重复的。判断规则就是红色部分重名。

查找百度并反复测试，最后实现脚本如下：

1 @echo off&setlocal enabledelayedexpansion

2 for /d %%s in (r:\201710*) do (

3 rem echo s1%%s\inv*.jpg

4 for /f "delims==" %%i in ('dir %%s\inv*.jpg /b') do (

5 rem echo i1%%i

6 for /f "tokens=3 delims=_ " %%j in ("%%i") do (

7 if exist D:\invall\%%j.jpg (

8 echo "pass copy file "%%s\%%i

9 ) else (

10 echo "copy file "%%s\%%i

11 copy %%s\%%i D:\invall\%%j.jpg >nul

12 rem pause

13 )

14 )

15 )

16 )

17 goto :end

18 :end

19 pause

总结：

1、for循环中，变量只能1个字母，%%s是ok的，%%subdir不ok。

2、for /f "delims==" %%i in ('dir %%s\inv*.jpg /b') %%i 前不能有变量。

3、do  () ，do后面必须有一个空格。4、setlocal enabledelayedexpansion 加扩展延迟。

另一种写法：

1 @echo off

2 setlocal enabledelayedexpansion

3 for /d %%i in (r:\201710*) do (

4 call :subdir %%i

5 )

6

7 :subdir

8 echo subdir %1%

9 for /r "%1" %%b in (inv*.jpg) do (

10 echo %%b

11 call :substr %%b

12 )

13 :substr

14 for /f "tokens=3 delims=_" %%j in ("%1%") do (

15 echo substrfor %%j

16 copy %1 D:\invall\%%j.jpg

17 )

18 goto :eof

19 :eof

20 pause

以上……

柚子快报邀请码778899分享：一段批处理脚本(for 嵌套)

http://www.51969.com/

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