Peteris Krumins

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-Convert IP address to decimal form-Replace one string with anotherAnd many more! Save time and sharpen your coding skills as you learn to conquer those pesky tasks in a few precisely placed keystrokes with Perl One-Liners.