Perl One-Liners: 130 Programs That Get Things Done

By Peteris Krumins

Book Overview

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 strings Generate random passwords Calculate sums, factorials, and the mathematical constants pi and e Add or remove spaces Number lines in a file Print lines that match a specific pattern Check to see if a number is prime with a regular expression Conve

• Format: Paperback
• Language: English
• ISBN: 159327520X
• ISBN13: 9781593275204
• Release Date: November 2013
• Publisher: No Starch Press
• Length: 168 Pages
• Weight: 0.90 lbs.
• Dimensions: 0.5" x 7.1" x 9.2"