Perl one liners are small and awesome perl programs that fit in one line of code and do one thing really well. It really is a poor choice for a beginners starter language, so know what youre getting in to. Snappy perl programs to streamline tasks and sharpen coding skills provided by publisher. The second standard trick to perl oneliners are the n and p flags. This book provides many useful examples of perl 6 one liners that can do everything from finding duplicate lines in a file to running a web server. We talk about his favourite perl one liners, publishing books and perl on windows. Perl oneliners are small and awesome perl programs. If youre looking for a free download links of perl one liners.
Case studies show the programming language used in real ways, and resources for exploring each language in more detail are also included. Download pdf ruby under a microscope an illustrated guide. In perl oneliners, author and impatient hacker peteris krumins takes you through larger than 100 compelling oneliners that do all forms of helpful points, comparable to control line spacing, tally column values in a desk, and get a listing of users on a system. Perl one liners showcases short and compelling lines of code that do all sorts of handy, geeky things like numbering lines in a file.
In perl oneliners, author and impatient hacker peteris krumins takes you through more than 100 c ompelling oneliners that do all sorts of handy things, such as manipulate line spacing, tally column values in a table, and get a list of users on a system. In perl oneliners, author and impatient hacker peteris krumins takes you through more than 100 compelling oneliners that do all sorts of handy things, such as. I speak from first hand experience, i first learned to code with perl, completely self taught. The core of any perl one liner is the e switch, which lets you pass a snippet of code on the commandline. Example perl one liners for command line use, a summary of important perl command line arguments, and how to convert between 1 liners and full perl scripts. Perl oneliners are small and awesome perl programs that fit in one line of code and do one thing really well. The second standard trick to perl one liners are the n and p flags. This is my third e book and i based it on the famous perl oneliners explained article series that. Thank you for buying my sed oneliners explained ebook. In perl one liners, author and impatient hacker peteris krumins takes you through more than 100 compelling one liners that do all sorts of handy things, such as manipulate line spacing, tally column values in a table, and get a list of users on a system. The core of any perl oneliner is the e switch, which lets you pass a snippet of code on the commandline.
I got allowed from peteris krumins who have written a book about perl one liners and i have read that book and 99% of the one liners come from this book. I went through all the one liners, improved explanations, fixed mistakes and typos, added a bunch of new one liners, added an introduction to perl one liners and a new chapter on perl s special variables. Cal c ula t i o ns in this chapter, well look at various oneliners for performing calculations, such as finding minimum and maximum elements, counting, shuffling and permuting words, and calculating dates and numbers. Ebook network programming with perl as pdf download. Perl one liners by peteris krumins until 15th january 2014. Its cleaner with fewer special variables and options to memorize. This cookbook of useful, customizable, and fun scripts will even help hone your perl coding. This page assumes the reader has a reasonable amount of perl experience. This ability to do so many tasks is the reason why perl is nicknamed the swissarmy chain saw of unix tools. Often, the perfect tool is the oneliner, a small but powerful program that fits in one line of code and does one thing really well. I bought them all in pdf and then bought the pretty no starch press version of perl oneliners makes a great coffee table book i just pick it up and open it to any page and im intrigued fun. I went through all the oneliners, improved explanations, fixed mistakes and typos, added a bunch of new oneliners, added an introduction to perl oneliners and a new chapter on perls special variables. Nov 19, 2018 that worked perfectly but it was so simple i thought it should be a one liner.
They do one thing really welllike changing line spacing, numbering lines, performing calculations, converting and substituting text, deleting and printing specific lines, parsing logs, editing files inplace, calculating statistics, carrying out system. Download pdf ruby under a microscope an illustrated. Introduction to perl oneliners pdf peteris krumins. Advance praise for perl oneliners one of the slogans used by perl. Author peteris krumins dissections of each bit of code will help you gain a deeper understanding of the perl language, and these perl oneliners. Well start with a brief refresher on the basics of perl oneliners before we begin. In perl oneliners, author and impatient hacker peteris krumins takes you through more. Ive now written the perl one liners explained ebook based on this article series. This book is not an attempt to cover every perl oneliner ever, or even every useful perl oneliner ever.
Btw, i really enjoyed peteris krumins sed, awk and perl one liner books. Often, the perfect tool is the one liner, a small but powerful program that fits in one line of code and does one thing really well. This cookbook of useful, customizable, and fun scripts will even help hone your perl. They do one thing really welllike changing line spacing, numbering lines, performing calculations, converting and substituting text, deleting and printing specific lines. Perl oneliners peteris krumins no starch press, 20. Contents in detail acknowledgments xvii 1 introductiontoperloneliners 1 2 spacing 7 2. The top 10 tricks of perl oneliners oracle linux blog. So the only fate one liners would normally aspire to would be to be relegated to a lonely corner of a book.
In perl oneliners, author and impatient hacker peteris krumins takes you through more than 100 compelling oneliners that do all often, the perfect tool is the oneliner, a small but powerful program that fits in one line of code and does one thing really well. Dec 18, 20 by david farrell peteris krumins is a perl author, startup founder and allaround hacker. Perl oneliners showcases short and compelling lines of code that do all sorts of handy, geeky things. I got allowed from peteris krumins who have written a book about perl oneliners and i have read that book and 99% of the oneliners come from this book. Isbn 9781593275204 paperback isbn 159327520x paperback 1. I bought them all in pdf and then bought the pretty no starch press version of perl one liners makes a great coffee table book i just pick it up and open it to any page and im intrigued fun. This aspect of perl s greatness is easily forgotten and left in the shadows. Perl oneliners showcases short and compelling lines of code that do all sorts of handy, geeky things like numbering lines in a file. In perl one liners, author and impatient hacker peteris krumins takes you through more than 100 compelling one liners that do all sorts of handy things, such as manipulate line spacing, tally column values in a. That worked perfectly but it was so simple i thought it should be a oneliner. And just like perl 6 cleaned up perl 5s warts elsewhere, the one liner syntax is also better. Dec 25, 20 get 30% off the new perl one liners book.
Perl oneliners ebook by peteris krumins rakuten kobo. I went through all the oneliners, improved explanations, fixed mistakes and typos, added a bunch of new oneliners, added an introduction to perl oneliners and a new chapter on perl s special variables. Well start with a brief refresher on the basics of perl one liners before we begin. Case studies show the programming language used in real ways, and resources for. Peteris krumins is the author of perl one liners 3.
Download it once and read it on your kindle device, pc, phones or. Example perl one liners for command line use, a summary of important perl command line arguments, and how to convert between 1liners and full perl scripts. Those generous folks at no starch press are offering a 30% discount on the new perl book. In perl oneliners, author and impatient hacker peteris krumins takes you through more than 100 compelling oneliners that do all sorts of handy things, such as manipulate line spacing, tally column values in a table, and get a list of users on a system. Oct 22, 20 in perl one liners, author and impatient hacker peteris krumins takes you through more than 100 compelling one liners that do all often, the perfect tool is the one liner, a small but powerful program that fits in one line of code and does one thing really well. This aspect of perls greatness is easily forgotten and left in the shadows. Ive now also written my 3rd e book called perl oneliners explained. In perl oneliners, author and impatient hacker peteris krumins takes you through more than 100 compelling oneliners that do all sorts of handy things, such as manipulate line spacing, tally column values in a. This book is designed to provide a basic working knowledge of each language presented.
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