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• Numerical Operators - video

• Numerical operators

• Parse bulleted list in Markua

• Regex character classes

• Sending email with attachments - video

• slurp mode - reading a file in one step

• disk usage: du in Perl - video

• die, warn, exit - video

• Using the built-in debugger of Perl

• Using Travis-CI and installing Geo::IP on Linux and OSX

• DNS Name resolving - check DNS propagation with Perl

• PSGI and AJAX for single-page applications

• $-

• Switch-Case statement in Perl 5

• Logical Operators in Perl - video

• Moose-like type checking system for Moo

• A bunch of Perl one-liners to edit HTML files

• One-liner sum of column in CSV - video

• Multiple expected values - testing dice

• Epoch - The creation of the world