Windows CMD command to run a command inside every subdirectory?

Question

I have a batch script I wrote called "joiner.bat." It needs to run inside each of 730 sub-directories of a folder. The joiner.bat file has already been copied into each of the sub-folders, it just needs to run in each. I tried this, but it doesn't work:

for %f in (*) do joiner.bat %f

I tried that command outside of a batch file just on the command prompt but it did nothing. I need the command to go into a folder, run the command, go back to the previous folder, into the next, run the command, and so on.

Answer 1

This should do it:

for /d %%a in (*) do (
    cd %%a 
    call joiner.bat
)

create this as a batch file in the top directory.

I modified your bach file from the comments. You may need more parens and DelayedExpansion requires the use of ! instead of %. Try this

setlocal enabledelayedexpansion
for /d %%a in (*) do ( 
    cd %%a 
    copy /b *.xml newfile.xml 
    @echo off 
    SET "CDIR=%~dp0" 
    SET "CDIR=!CDIR:~0,-1!" 
    FOR %%i IN ("!CDIR!") DO (
        SET "PARENTFOLDERNAME=%%~nxi" 
        move newfile.xml "C:\users\lacroixja01\desktop\test\%PARENTFOLDERNAME%.xml" 
        )
)

Answer 2

I had to modify it to look like this:

for /d %%a in (*) do (
    cd %%a 
    call joiner.bat
    cd ..
)