You are also introduced to object-oriented programming features in Perl. Chapter 20 mentions a few areas not covered in this book and suggests references for further study. The four short appendices cover command-line switches, special Perl variables, additional resources for readers, and a brief explanation of binary, octal, and hexadecimal numeric representation. Following the appendices is a small glossary of technical terms used in this book. The source code for many of the example programs and modules presented in this book may be obtained from Manning's website.
Many chapters have a small number of exercises at the end.
There is no appendix of answers to these exercises. However, the web page mentioned above contains a link to a solutions page. Finally, although we have strived to eliminate mistakes from the manuscript, some errors may have slipped through. The previously mentioned web page contains a link to an online errata listing corrections to errors discovered after the book was published. If you find any errors, please let us know so we can list them on the errata sheet and fix them in a later printing.