How do I create a bat file to process different file names within a directory?

Question

How do I create a bat file to process different files within a directory? The file names are incrementing as below and the command that I need in the bat file should be something like java -jar Test.jar (the incrementing file names) one after the other. I have create one .bat file which looks like this -

java -jar Test.jar TESTDOC1.xml 
java -jar Test.jar TESTDOC2.xml
java -jar Test.jar TESTDOC3.xml

pause

But there is a possibility that the count might increase to a huge number.

File Names:

TESTDOC1.xml TESTDOC2.xml TESTDOC3.xml

how do I do it?

with the usage of a `for` loop and wildcard `*`. open cmd.exe and enter `For /?` for more information — T3RR0R, Aug 20 '20 at 14:17
Seems like it would be better to change your JAVA program to use a wildcard to read the files from the directory. The reason I say that is because cmd.exe has a line limit of 8,192 bytes. If you have hundreds of XML files that you need to process, the command line execution could easily exceed that. — Squashman, Aug 20 '20 at 14:28
@Squashman Thanks. What if I redirect the output to a simple .txt file. The challenge that I have here is that I am not supposed to edit the java program but instead create a .bat file to feed the files to the jar file. — TWEET, Aug 20 '20 at 14:51
@TWEET Take a look on my answer on [write all files found in one directory into one command line?](https://stackoverflow.com/a/62359278/3074564) — Mofi, Aug 20 '20 at 15:37
I guess I need to understand why they all need to be on the same line for execution. Why couldn't you just loop through the file names and keep executing java? — Squashman, Aug 20 '20 at 19:51

score 0 · Answer 1 · answered Aug 21 '20 at 12:42

If the files are really incremented by numbers like you say, why not just:

@echo off
for /f "tokens=1,*" %%i in ('dir testdoc*.xml ^| findstr "File(s)"') do (
   for /l %%a in (1,1,%%i) do echo java -jar test.jar testdoc%%a.xml
)

Where I have echo to simply print to screen, you need to remove echo if the printed results are what you expect.

score 0 · Answer 2 · edited Sep 01 '20 at 11:24

0

I tried below and it worked. Thanks Squashman for the help

for /r %%i in (*.xml) do java -jar Test.jar %%i >myopt.txt
pause

edited Sep 01 '20 at 11:24

Stephan

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answered Sep 01 '20 at 07:11

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How do I create a bat file to process different file names within a directory?

2 Answers2