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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:
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Encode, decode, and convert strings
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Generate random passwords
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Calculate sums, factorials, and the mathematical constants π and e
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Add or remove spaces
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Number lines in a file
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Print lines that match a specific pattern
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Check to see if a number is prime with a regular expression
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Convert IP address to decimal form
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Replace one string with another
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 Perl One-Liners. |
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Aortic Root Surgery: The Biological SolutionThe surgical treatment of the aortic valve and root disease, organic and ischemic mitral regurgitation, and endocarditis has made great strides. Still, there is the well-known dilemma: on the one hand the need for anticoagulation in patients with mechanical valves that otherwise guarantee long-term functioning and, on the other, the... | | X Window System User's Guide (Definitive Guides to the X Window System)
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Learn how to run large-scale, data-intensive workloads with Compute Engine, Google’s cloud platform. Written by Google engineers, this tutorial walks you through the details of this Infrastructure as a Service by showing you how to develop a project with it from beginning to end. You’ll learn best practices for using... |
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