Right on both counts. My question, though, is whether I would expect to get the mystery log file error as a result of a broken shebang line. It doesn't make sense to this bear of little brain. I would have expected something like interpreter not found or no such file... not

fopen: Permission denied 
failed to open log file
[download]

which is what I actually get. But it's perfectly possible I'm mistaken as this is definitely not my area of expertise. If anyone can tell me, I'd be very grateful.

§ George Sherston