Hello! Author here.<p>I am pleased to announce a new version of my "Perl One-Liners Guide" ebook.<p>Perl has a feature rich regular expression engine, plenty of builtin modules and a thriving ecosystem. Another advantage is that Perl is more portable. This book will show examples for filtering and substitution features, field processing, using standard and third-party modules, multiple file processing, how to construct solutions that depend on multiple records, how to compare records and fields between two or more files, how to identify duplicates while maintaining input order and so on.<p>Links:<p>* PDF/EPUB versions: <a href="https://learnbyexample.gumroad.com/l/perl-oneliners" rel="nofollow noreferrer">https://learnbyexample.gumroad.com/l/perl-oneliners</a> or <a href="https://leanpub.com/perl-oneliners/c/new_perl_release" rel="nofollow noreferrer">https://leanpub.com/perl-oneliners/c/new_perl_release</a> (free till 08-October-2023)<p>* Web version: <a href="https://learnbyexample.github.io/learn_perl_oneliners/" rel="nofollow noreferrer">https://learnbyexample.github.io/learn_perl_oneliners/</a><p>* Markdown source, example files, etc: <a href="https://github.com/learnbyexample/learn_perl_oneliners">https://github.com/learnbyexample/learn_perl_oneliners</a><p>Bundle offers:<p>"All Books Bundle" is just $12 (normal price $32) — includes all my 13 programming ebooks.<p>* <a href="https://learnbyexample.gumroad.com/l/all-books/new_perl_release" rel="nofollow noreferrer">https://learnbyexample.gumroad.com/l/all-books/new_perl_rele...</a><p>* <a href="https://leanpub.com/b/learnbyexample-all-books/c/new_perl_release" rel="nofollow noreferrer">https://leanpub.com/b/learnbyexample-all-books/c/new_perl_re...</a><p>I would highly appreciate it if you'd let me know how you felt about this book. It could be anything from a simple thank you, pointing out a typo, mistakes in code snippets, which aspects of the book worked for you (or didn't!) and so on. Reader feedback is essential and especially so for self-published authors. Happy learning :)