So it can't for some reason unlink the file. There are two possibilities: 1. you don't have permissions. 2. the path does not point to the right file (for instance, you're in the wrong current directory).

So what's in "$!" ? I did not put that code there for laughs. Anyone who wonders why some operation on a file didn't succeed and doesn't do a check + print $! gets what (s)he deserves.

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^3: Why aren't these equivalent? by Joost
in thread Why aren't these equivalent? by Anonymous Monk

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