dgBP questions

• Perl regex - can I say 'if character/string matches, delete it and all to right of it'?
• Can't use numbers in certain instances for perl hash keys?
• Combining 2+ 'deep' (multi-dimensional) hashes in perl
• Find longest unique substring in string python
• How to go back months in Perl taking account of different days in month?
• In Perl is there a way to restart the program currently running from within itself?
• Perl hash of hashes of hashes of hashes... is there an 'easy' way to get an element at the end of the list?
• Perl objects error: Can't locate object method via package
• Approximating pi in Perl - what am I doing wrong?
• Why do '::' and '->' work (sort of) interchangeably when calling methods from Perl modules?

dgBP answers