Hi Dave:

I still don't understand what went wrong when I followed your instructions. I did mention the odd open parenthesis "(" without a closing parenthesis, but that's definitely all that was outputed. I just tried again w/ undef $/; and I can confirm (Li Stores: and FF Stores was the original output before implementing your code, it was still there afterward, but I didn't think it was important to mention):

x@y:~/example$ perl example
Field names detected: (# de tienda  tipo  ubicacion
Li stores: 
FF Stores: 
x@y:~/example$
[download]

I post this out of curiosity & to avoid making the same mistake in the future

Thank you for your help, I really appreciate the time you took to help me figure this out!!

1straw