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• Strings in Perl: quoted, interpolated and escaped

• strings in single quotes - video

• Time::Local - Day '31' out of range 1..30

• Does the 'all' function of List::MoreUtils really short-circuit?

• Don't Open Files in the old way

• Can't locate ... in @INC

• Implementing 'is_any' to test multiple expected values

• Using 'like' to test without exact values

• 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 call method ... on unblessed reference

• $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 use Net::Appliance::Session inside a thread

• The 'if' statement - video

• Don't interpolate in printf (Missing argument in sprintf at ...)

• Don't keep generated files in version control

• Argument ... isn't numeric in numeric ...

• Can't use string (...) as an HASH ref while "strict refs" in use at ...

• Private Member Data shouldn't be accessed directly - encapsulation violation