About 3,840,000 results
The Perl Programming Language - www.perl.org
Perl - Wikipedia
operators - What does =~ do in Perl? - Stack Overflow
Perl Download - www.perl.org
Perl Tutorial
About Perl - www.perl.org
Learn Perl - learn.perl.org
Perl/perl5: The Perl programming language - GitHub
Learn Perl - www.perl.org
Beginning Perl (free) - www.perl.org