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Question

I have about 2000 jpg files in a folder, and I need to make a folder for each of them with the same name. The jpg doesn't necessarily have to be in the same folder. I'm new to batch script, but it seemed like a pretty simple operation. This is what I have so far:

for %%i in (*) do md %%i

When I run it, it says a subdirectory or file already exists. How do I get it to make a directory even though a file with the same name already exists?

Also, it appears to only loop for the last hundred files. How do I get it to run for all ~2000?

Answer 1

You can try something like that :

@echo off
set "ext=*.jpg"
for %%i in ("%ext%") do ( 
    if not exist "%%~ni" MD "%%~ni" 
)
pause

Edit on 20/07/2016 @20:25

Calling

for /?

in the command-line gives help about this syntax (which can be used outside FOR, too, this is just the place where help can be found).

In addition, substitution of FOR variable references has been enhanced. You can now use the following optional syntax:

 %~I - expands %I removing any surrounding quotes (") %~fI - expands %I to a fully qualified path name %~dI - expands %I to a drive letter only %~pI - expands %I to a path only %~nI - expands %I to a file name only %~xI - expands %I to a file extension only %~sI - expanded path contains short names only %~aI - expands %I to file attributes of file %~tI - expands %I to date/time of file %~zI - expands %I to size of file %~$PATH:I - searches the directories listed in the PATH environment variable and expands %I to the fully qualified name of the first one found. If the environment variable name is not defined or the file is not found by the search, then this modifier expands to the empty string 

The modifiers can be combined to get compound results:

 %~dpI - expands %I to a drive letter and path only %~nxI - expands %I to a file name and extension only %~fsI - expands %I to a full path name with short names only %~dp$PATH:I - searches the directories listed in the PATH environment variable for %I and expands to the drive letter and path of the first one found. %~ftzaI - expands %I to a DIR like output line 

In the above examples %I and PATH can be replaced by other valid values. The %~ syntax is terminated by a valid FOR variable name. Picking upper case variable names like %I makes it more readable and avoids confusion with the modifiers, which are not case sensitive.

There are different letters you can use like f for "full path name", d for drive letter, p for path, and they can be combined. %~ is the beginning for each of those sequences and a number I denotes it works on the parameter %I (where %0 is the complete name of the batch file, just like you assumed).