I'd stick a $! on the end of that print. That way you can see what the error is :-) 
open(FD, ">>file_name") or die("Can't open file for appending: $!\n");

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my name's not Keith, and I'm not reasonable.

In reply to Re^2: appending is not done by reasonablekeith
in thread appending is not done by s_gaurav1091

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