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DOS批处理 & 脚本技术（批处理室） » A new method to randomly obtain file names

Floor1　zh159	Posted 2006-12-09 13:46
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Four months ago, we discussed the method of randomly obtaining file names together and found that the best code is: A question about randomly obtaining file names The code from moderator Wunaihe on floor 24: @echo off if "%1" NEQ "$" ( for /f "tokens=1,2 delims=:" %%a in ('"%~0" $^\|sort') do @echo %%b ) else for /f "delims=" %%i in ('dir /b /a-d .mp3') do @call :sub %%i goto :EOF :sub echo %random%:% goto :EOF And the codes modified by everyone later Tonight, inspired by the "set ." special usage (sorting) from redtek on floor 15 in: @echo off setlocal EnableDelayedExpansion for /f "delims=" %%i in ('dir/a-d/b .mp3') do set $!random!!random!$%%i=$ for /f "tokens=1,2 delims=$=" %%i in ('set $') do echo %%j pause

Floor2　redtek	Posted 2006-12-09 22:38
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Brother, your code is concise and wonderful. I appreciate it.

Floor3　zh159	Posted 2006-12-09 22:46
金牌会员　Posts 1,467　Credits 3,687
Got up in the morning and thought of the application of call (without using delay variables ): @echo off for /f "delims=" %%i in ('dir/a-d/b .mmf') do call set $%%random%%$%%i=$ for /f "tokens=1,2 delims=$=" %%i in ('set $') do echo %%j pause

Floor4　redtek	Posted 2006-12-09 22:50
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Haha... This call was played beautifully~ :)

Floor5　HUNRYBECKY	Posted 2006-12-10 00:45
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Strong, the code above can be slightly modified to scan for specified (type) files on the hard drive and perform related operations. For example, some time ago when the Viking virus was encountered, a batch file could be created and placed in the C drive: @echo off for /f "delims=" %%i in ('dir /a/b/s desktop.ini') do call set $%%random%%$%%i=$ for /f "tokens=1,2* delims=$=" %%i in ('set $') do echo %%j >>c:\deleted_virus_files.txt pause This will find all _desktop.ini files and perform the deletion operation.

Floor6　lxmxn	Posted 2006-12-10 01:54
版主　Posts 4,938　Credits 11,386
Originally posted by HUNRYBECKY at 2006-12-10 00:45: Powerful, the code above can be slightly modified to scan for specified (type) files on the hard drive and perform related operations. For example, some time ago, the Viking virus was infected. You can create a batch file and place it in the C drive: ... 　　The main file of the Viking virus is _desktop.ini, and if you do this, all desktop.ini files under the C drive will be deleted, which may affect some system properties.