Remove everything except PNG

[Andrius]

I need a file that essentially drills through every folder and deletes ALL files except for PNG extensions yet leaves folder structure intact.

Code: Select all

[b]Example:
[/b]C:\Example\delete_all_but_png.bat
C:\Example\test1.png
C:\Example\Another Folder\test1.psd
C:\Example\Another Folder\test1.exe
C:\Example\Another Folder\test1.bmp
C:\Example\Test Folder\test2.png

[b]Result would leave me with:[/b]
C:\Example\delete_all_but_png.bat
C:\Example\test1.png
C:\Example\Another Folder\ (EMPTY FOLDER)
C:\Example\Another Folder\ (EMPTY FOLDER)
C:\Example\Another Folder\ (EMPTY FOLDER)
C:\Example\Test Folder\test2.png

Thoughts?

[Squashman]

Code: Select all

@echo off
FOR /F "delims=" %%G IN ('dir /a-d /b /s ^|find /v "%~dpnx0"') do (
   IF /I NOT "%%~xG"==".png" del "%%~G"
)

[Andrius]

Wow you work fast! Thanks!

[Squashman]

Wow you work fast! Thanks!

Easy code. If it was a college class it would be called: FOR LOOP 101

[alan_b]

I need a file that essentially drills through every folder and deletes ALL files except for PNG extensions yet leaves folder structure intact.

Result would leave me with:
C:\Example\delete_all_but_png.bat
C:\Example\test1.png
... etc ...
Thoughts?

That is a little inconsistent.
delete_all_but_png.bat does not have a PNG extension so it fails to meet the spec.
Not that I expect a BAT file to be successful in deleting itself

[Andrius]

hahah good eye

[Squashman]

I need a file that essentially drills through every folder and deletes ALL files except for PNG extensions yet leaves folder structure intact.

Result would leave me with:
C:\Example\delete_all_but_png.bat
C:\Example\test1.png
... etc ...
Thoughts?

That is a little inconsistent.
delete_all_but_png.bat does not have a PNG extension so it fails to meet the spec.
Not that I expect a BAT file to be successful in deleting itself

I looked at was his input was and what his expected output was. I saw he was going to put the batch file in a folder that had PNG files in it, which is why I threw in the PIPE to the FIND command.