Elements of Programming with Perl
Many neophyte programmers now begin their careers by learning the metalanguage, Perl. But the books currently available on Perl assume their readers already understand the basics of writing and designing programs--when in fact they do not. The tutorial teaches programming right along with the particulars of Perl syntax, as well as good style and structure and maintainability of the code.
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anonymous array argument ARGV array variable assignment backslash begin binary heap blah block called chapter character class chomp command line contains count CPAN create data structures debugging declare default defined digits division by zero documentation element evaluated example executed Fibonacci file handle filename first_number foreach function grep hash heap input integer is_valid language Larry Wall lexical variables Literate Programming loop manpage match operator mathq method modifier module multiplication newline node option output package parameters parentheses pattern Perl program Perl's perldoc pod-page prime_number print foo problem question queue recursive reference regex regular expression root chunk routine scalar value scalar variable script second_number sequence shift simple solution sort split stack statement STDIN stored strict student subpattern subroutine substitution operator symbol syntax thing tion usr/bin/perl variable name whitespace words write zero