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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
Skip tests if prerequisites are not installed
Solution: Hello World part 2 (what is the difference between comment and POD?) - video
Run Perl::Tidy to beautify the code
File modify date - When was a file last changed?
What is autovivification?
How to check if a child process is still running in Perl?
Image::ExifTool - Writing into IPTC-fields
/x modifier for verbose regexes - video
How to check if a string is all upper case (lower case) characters?
Stringification in classic Perl OOP
exists - check if a key exists in a hash
What is the difference between require and use in Perl? What does import do?
Perl 5 Regex Quantifiers
How to check if string is empty or has only spaces in it using Perl?
Get Coveralls to notify when test-coverage shrinks