Q: Apple Script to rename images using CSV file

What do I need to change to make this work with a tab delimited file?

To work with a tab delimited file, change: 

     OldImageName=${line%,*}

     NewImageName=${line#*,}

to: 

     OldImageName=${line%$'\t'*}

     NewImageName=${line#*$'\t'}

That is what I thought too but no dice. I wonder if my file is the issue?

Got it. Had to resave file to format "Windows Formatted Text"

>That is what I thought too but no dice. I wonder if my file is the issue?

Could be the line endings in the file.  The script is expecting a UNIX \n, but could be a Windoes \r\n

Need to see what line endings are used in your csv file:

In Terminal, try cat -e on the text file to view the line endings (if a UNIX \n you'll see $ at the end, if Windows, you'll see ^M$)

If it is a non-UNIX file, you can convert the file with tr by deleting the carriage return \r:

     tr -d  '\r' < ~/Desktop/originalfile.csv > ~/Desktop/Newfile.csv

Then you can run the script on Newfile.csv

edit: Never mind, I see now that you solved it.

Thanks Tony. I like your solution and you were right it was seeing the windows format. Now all I have to do is get it to see leading zeros in the old file name. Thanks you again.