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• Numerical Operators - video

• Numerical operators

• Parse bulleted list in Markua

• Regex character classes

• A bunch of Perl one-liners to edit HTML files

• ->

• -O

• Parsing NaN in JSON - JavaScript and Perl

• More UNIX commands - video

• Unix and DOS commands - video

• rename files - video

• Command line parameters (screencast) - video

• Command line parameters - video

• Loop controls: next last - video

• Virtualenv in Perl 5 - install 2 different versions of the same module

• Dumping a hash - video

• Comparison Operators - video

• @-

• Reporting diskspace usage on a mail server - video

• Changing @INC relative path - video