- MAC UTILITY RANDOMIZE FILE NAMES FULL
- MAC UTILITY RANDOMIZE FILE NAMES CODE
- MAC UTILITY RANDOMIZE FILE NAMES WINDOWS
It also uses a +1 slide so that it doesn't rely on %random% eventually hitting all possible values. Here's one that is independent of the count of files (though it does require them to be named 1.bmp to n.bmp). That is, iterate over the list of folders and for each one call the randomize procedure. To make it work across subdirectories, the call line can be changed to something like for /r "%workingFolder%" /d %%d in (.) do call :randomizeFolderFiles "%%~fd" "%fileExtension%" To pass the file extension as argument to the batch file (or to directly set the value in the fileExtension variable) only the bmp is needed. So rename f (in the original list the file in position %%a) to f (the random selected file in the shuffle) In each iteration of the loop, the element %%a (with %%a from %count% to 0) is swapped with a random element !e! in the range 0.%%a, leaving in %%a the final element for this position of the array. The array a is shuffled using a Fisher-Yates in place shuffle.
MAC UTILITY RANDOMIZE FILE NAMES FULL
The full list of files is readed in f, and the indexes in a. :randomizeFolderFiles folder fileExtensionĭir /b /a-d "*.%~2" 2^>nul ^| findstr /n "^" If not defined fileExtension set "fileExtension=*"Ĭall :randomizeFolderFiles "%workingFolder%" "%fileExtension%" If not defined workingFolder set "workingFolder=%cd%" Setlocal enableextensions disabledelayedexpansion There is no requirements in file name format, number of files (limited to environment memory) or special characters in file names. That means one rename operation for each file and one rename operation over the full list of files. This temporary extension is later removed. In this case, files are renamed one by one to a temporary extension to avoid collisions while processing the list. Read all the files into an array, and shuffle the array, renaming as the shuffle processes files. Coded as a subroutine uses a similar idea in answer. To execute this to all sub-directories (lets say the script is saved as randomizer.bat) use this with the actual path to the script: offįor /d /r %%# in (*) do call c:\randomizer.bat "%%~#" Now it accepts the directory as a first argument and counts the. (GMT + 0:00) - rename part fixed.ĮDIT edited according to the new requirements. I thought it will be madness to wait all the numbers to be filled only by waiting %random% to generate all numbers.So I've created :backward and :forward functions for faster generation.ĮDIT 10:05:57 p.m. Rem echo setting !inner_rnd! to %set_to% from :forward Rem echo setting !inner_rnd! to %set_to% from :backwardįor /l %%$ in (!down_limit!, 1, !files_count! ) do ( Rem echo setting !rnd! to %%# in outer function REM Do not modify anything below this line unless you know what you are doing.ĮCHO You are about to randomly rename every file in the following folder:ĮCHO A file named %TranslationFile% will be created which allows you to undo this.ĮCHO Warning: If %TranslationFile% is lost/deleted, this action cannot be undone.For /f %%A in ('dir /a-d-s-h /b *.bmp ^| find /v /c ""') do set files_count=%%A REM If you delete the translaction file, you will not be able to undo the changes! REM This will only work if the file "_Translation.txt" is in the same folder. REM 1 = Undo changes according to the translation file.
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REM 1 = Prepend the existing file name with randomly generated string. SETLOCAL EnableExtensions EnableDelayedExpansion REM Randomly renames every file in a directory.
MAC UTILITY RANDOMIZE FILE NAMES CODE
However, if all you need is some way to randomize the contents of a folder, here's some code HowToGeek posted a while back: OFF For example, if what you need is a way to randomize your screensaver or slideshow, this is not the correct way to phrase your question. Now, depending on what you need the files to be randomized for can change the needed answer for your question. Sorting them randomly requires one of these filters to be randomized as well. You could sort the files by Name, Date, Type, Size, etc.
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MAC UTILITY RANDOMIZE FILE NAMES WINDOWS
Windows Explorer (explorer.exe) will sort the files however you tell it to sort them.