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Strings in Perl: quoted, interpolated and escaped
strings in single quotes - video
Does the 'all' function of List::MoreUtils really short-circuit?
Don't keep generated files in version control
$a - $b - Special variables when using sort(). Don't use them for anything else besides your sort function!
Don't use $a and $b outside of sort, not even for examples
Can't call method ... on unblessed reference
What's new in Perl 5.10? say, //, state
Can't locate inc/Module/Install.pm in @INC (you may need to install the inc::Module::Install module) (@INC contains: ...)
Can't use Net::Appliance::Session inside a thread
Can't locate ... in @INC
Private Member Data shouldn't be accessed directly - encapsulation violation
Don't Open Files in the old way
Can't locate Object method "cells" via Win32::IEAutomation
Don't put & in-front of subroutines in Perl
Don't interpolate in printf (Missing argument in sprintf at ...)
Crypt::SSLeay - 500 Can't connect to ____ (Crypt-SSLeay can't verify hostnames)
Implementing 'is_any' to test multiple expected values
Using 'like' to test without exact values
The 'if' statement - video