"Mogrify" error handling in Windows batch

[wallywalters]

I'm writing a Windows batch file to change folders full of TIF files to JPG and want it to go to an error-handling label if the TIF file is invalid. The relevant code is essentially

Code: Select all

  mogrify.exe -format jpg "%1"    
  if not %ERRORLEVEL%==0 goto :BAD_FILE 

but even when I run it on test TIFs designed to fail the test, it returns an errorlevel of 0, so I can't brandh to the error reporting subroutine. How can I make Mogrify return proper error codes? Thanks.

[snibgo]

if not %ERRORLEVEL%==0

That's not how to do it. I suggest you read up on Windows BAT scripts. Try:

Code: Select all

if ERRORLEVEL 1