Perl One-Liners: 130 Programs That Get Things Done

Perl One-Liners: 130 Programs That Get Things Done

<div><p>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.<br/><br/>In <em>Perl One-Liners</em>, 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.<br/><br/>You'll find one-liners that:</p><ul><li>Encode, decode, and convert strings</li><li>Generate random passwords</li><li>Calculate sums, factorials, and the mathematical constants π and <em>e</em></li><li>Add or remove spaces</li><li>Number lines in a file</li><li>Print lines that match a specific pattern</li><li>Check to see if a number is prime with a regular expression</li><li>Convert IP address to decimal form</li><li>Replace one string with another</li></ul>And many more! Save time and sharpen you coding skills as you learn to conquer those pesky tasks in a few precisely placed keystrokes with <em>Perl One-Liners</em>.</div>