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• Numerical Operators - video

• Numerical operators

• Parse bulleted list in Markua

• Regex character classes

• Bug in the for-loop of Perl? - B::Deparse to the rescue

• How to freak-out your co-workers with a for loop?

• Comparison Operators - video

• Set HTTP headers with WWW-Mechanize

• Using object oriented modules - video

• Switching to Moo - adding command line parameters

• exists - check if a key exists in a hash

• exists, delete in hash - video

• Compare Values - video

• Changing @INC - video

• Changing @INC relative path - video

• How to change @INC to find Perl modules in non-standard locations

• Removal of the current directory (".") from @INC in Perl 5.26 and Travis-CI

• More UNIX commands - video

• trim - removing leading and trailing white spaces with Perl

• POD - Plain Old Documentation