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($fh, $filename) = tempfile($template, DIR => $dir)
or die " $progname: Error creating $filename: $!";
print $fh "\nS'working?\n"
or die "$progname: Error writing to $filename: $!";
or die "$progname: Error closing $filename: $!";
print "Printed data to $filename\n";
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
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