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Numerical Operators - video
Numerical operators
Parse bulleted list in Markua
Regex character classes
Using the built-in debugger of Perl
Editors and IDEs for Perl developers - video
Single-line regexes using /s - video
Processing command line arguments - @ARGV in Perl
Short-circuit in boolean expressions
seek - move the position in the filehandle in Perl
Solution: display unique rows of a file - video
slurp mode - reading a file in one step
use Path::Tiny instead of home-made ReadFile and WriteFile
Changing @INC relative path - video
Moo with hash reference as attributes - with or without default values
ref - What kind of reference is this variable?
substitution - video
$$, $PROCESS_ID, $PID- The process number of the current script / program / executable.
Welcome and Installation - video
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