I didn't understand why the results would be different when printing out $string1 and $string2 in below script. I thought the 'tr' operator would work the same way on both strings. Please help! The result from printing $string1: "b b b." The result from printing $string2: " ." 

#!/usr/bin/perl 

$string1 = 'the cat sat on the mat.';
$string1 =~ tr/a-z/b/d;
print "$string1\n";

$string2 = 'the cit sit on the mit.';
$string2 =~ tr/a-z/b/d;
print "$string2\n";

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In reply to transliterate on regex by vicearl

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