Perl One-Liners: 130 Programs That Get Things Done

Part of the fun of programming in Perl lies in tackling tedious tasks with short, efficient, and reusable code. 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.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. This cookbook of useful, customizable, and fun scripts will even help hone your Perl coding skills, as Krumins dissects the code to give you a deeper understanding of the language.You'll find one-liners that: Encode, decode, and convert stringsGenerate random passwordsCalculate sums, factorials, and the mathematical constants π and eAdd or remove spacesNumber lines in a filePrint lines that match a specific patternCheck to see if a number is prime with a regular expressionConvert IP address to decimal formReplace one string with anotherAnd many more! Save time and sharpen you coding skills as you learn to conquer those pesky tasks in a few precisely placed keystrokes with Perl One-Liners.

Author:

Peteris Krumins

Publisher:

No Starch Press

Publication Date:

Dec 30, 2013

Number of pages:

168 pages

Language:

English

Binding:

Paperback

ISBN-10:

159327520X

ISBN-13:

9781593275204