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About bat files

Started by belfegor Dec 20, 2012 at 6:09 PM 3 replies 1.4k views

Original Post

Dec 20, 2012 at 6:09 PM

I downloaded nvidia texture tools command line utilites to be able to convert some textures to "bump maps". The problem is that it will take to long to do it by hand for all images, so i tried to automate it with bat, but my knowledge for command line sintaks is limited:


 for %%X in (*.dds) do nvcompress -tonormal %%X %%X_bump.dds

Last parameter is out file name.

If i have input images in that directory:


 Image1.dds
 Image2.dds
 Image3.dds

Output will be:


 Image1.dds_bump.dds
 Image2.dds_bump.dds
 Image3.dds_bump.dds

But i want to remove first extension so that output would be:


 Image1_bump.dds
 Image2_bump.dds
 Image3_bump.dds

Help.

Thank you for your time.

EDIT: Solved. Last param should be:


 %%~nX_bump.dds

fastcall22

Dec 20, 2012 at 7:04 PM

Windows Vista or later? Learn and use PowerShell. It's seriously amazing:


 get-childitem '*.dds' | foreach-object {
 & .\nvcompress -tonormal $_.Name $_.Name "$($_.Name)_bump.dds"
 }

Works with .NET, so you can load almost every assembly and directly work with it in PowerShell.

tstrimp

Dec 20, 2012 at 9:20 PM

Windows Vista or later? Learn and use PowerShell. It's seriously amazing:

And seriously verbose! It's very painful to use from the command line, but it's great for scripting tasks.

fastcall22

Dec 20, 2012 at 10:18 PM

And seriously verbose! It's very painful to use from the command line, but it's great for scripting tasks.

It doesn't need to be verbose; that's what aliases are for:
ls *.dds |%{$a=$_.Name;&.\nvcompress -tonormal $a $a "$($_.FullName)_bump.dds")}

Sik_the_hedgehog

Dec 20, 2012 at 11:28 PM

Ow, that reminds me of Unix shells (though those are still worse when it comes to legibility).

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