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/x modifier for verbose regexes - video
Scalar variables
String operators - video
String operators: concatenation (.), repetition (x)
More UNIX commands - video
Add and retrieve elements - jQuery + Ajax
Ajax and Dancer 2
PSGI and AJAX for single-page applications
Check several regexes on many strings
Escaping \ in regex: Unmatched ( in regex; marked by <-- HERE
Unix and DOS commands - video
Exception handling in Perl: How to deal with fatal errors in external modules
$EXTENDED_OS_ERROR
Checking a GitHub URL for existence
Test diagnostic messages using diag, note, and explain
The Hash-bang line, or how to make a Perl scripts executable on Linux
Exercise: improve Apache log analyzer - video
Exercise: improve color selector - video
Exercise: parse HTTP values - video
Exercise: parse variable width fields - video