open FILE, $filename or die "Can't open $filename: $!\n";
while (<FILE>) {
	my @data_in = split /\|/, $_;
	# process @data_in
}

##</code><code>##

perl -e 'print "How sweet does a rose smell? "; chomp $n = <STDIN>; $rose = "smells sweet to degree $n"; *other_name = *rose; print "$other_name\n"'