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• Conditional statements, using if, else, elsif in Perl

• Short Circuit - video

• Statement modifiers: reversed if statements

• Switch-Case statement in Perl 5

• The 'if' statement - video

• How to check if a string is all upper case (lower case) characters?

• CSV_XS ERROR: 2034 - EIF - Loose unescaped quote @ rec 5 pos 194

• How to check if a child process is still running in Perl?

• Web Scraping TED - information about a specific talk

• Manipulating Perl arrays: shift, unshift, push, pop

• How to check if a server is live using Ping?

• File modify date - When was a file last changed?

• Skip tests if prerequisites are not installed

• Image::ExifTool - Writing into IPTC-fields

• /x modifier for verbose regexes - video

• Perl 5 Regex Quantifiers

• Stringification in classic Perl OOP

• What is the difference between require and use in Perl? What does import do?

• Run Perl::Tidy to beautify the code

• How to get notification when specific contact goes online in Skype?