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Perl Basics In Pictures

• Basics
• Variables
• Numbers
• Subroutines
• Logic & Loops
• Files

• #!/usr/bin/perl
  print "Content-Type: text/html \n\n";

  # The code below makes it easy to change
  # numbers output by the script.

  $cars_on_lot = 100;

  print "<p>Welcome to <b>ACME AUTO!</b></p>";

  print "<p>Which one of our $cars_on_lot cars is right for you?</p>\n";

  $cars_on_lot is the single (scalar) variable. Scalar variables start with a $.

  The number 100 is assigned to the variable. The number is easy to change—that’s why it’s called a variable.