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• /x modifier for verbose regexes - video

• Scalar variables

• String operators - video

• String operators: concatenation (.), repetition (x)

• CPAN Digger explained

• min, max, sum in Perl using List::Util

• A command line counter with database back-end using DBIx::Class

• Compare the speed of Perl and Python regexes

• Github Actions for Perl running on Windows, Mac OSX, and Ubuntu Linux

• How to get the index of specific element (value) of an array?

• Understanding dates using regular expressions

• The Hash-bang line, or how to make a Perl scripts executable on Linux

• Github Actions for Module::Install and showing error log on Linux, Mac OSX, and Windows

• How to provide STDIN to an external executable?

• qx or backticks - running external command and capturing the output

• Unix and DOS commands - video

• Regexp Quote-Like Operators

• Sorting mixed strings

• How to create an Excel file with Perl?

• $$, $PROCESS_ID, $PID- The process number of the current script / program / executable.