in reply to Critique my First Script for me?

Nothing tragically wrong, but the sequence: 
print ...
print ...
print ...
print ...
print ...

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Is a little hard on the eyes. All those keywords, punctucation, backslashes, etc.. Instead consider using a here-document (sometimes called a here-script): 
print<<EOHTML;
Content-type: text/html

<html>
<body>
<font color="blue">$words</font>
</body>
</html>
EOHTML

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They're documented in the "perldata" manual page. For now, just remember to put the opening token right after the <<, use a semicolon at the end of that line, and put the closing token ("EOHTML") against the left edge on a line by itself and you'll be okay.

In Section Seekers of Perl Wisdom