Actually, while (my $line = <$INFILE>) is equally magical. 
while (<$INFILE>)            => while (defined($_ = <$INFILE>)
while (my $line = <$INFILE>) => while (defined(my $line = <$INFILE>)

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In reply to Re^3: printing the line after grepping by ikegami
in thread printing the line after grepping by rajyalakshmi

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