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Regular expressions in programming languages: A peek at Python

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This new series of articles will take readers on a journey that explores the regular expressions in various programming languages. The first article in...

A Beginner’s Guide to Grep: Basics and Regular Expressions

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Grep is one among the system administrator's "Swiss Army knife" set of tools, and is extremely useful to search for strings and patterns in...

Advanced Awk for Sysadmins

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In this article, we will discuss advanced Awk functionality, including string- and time-manipulation functions, associative arrays and user-defined functions. These can be very useful...

Sed Explained, Part 1

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UNIX-like operating systems have numerous powerful utilities accessible via the command-line and shell-scripting, which are flexible enough to operate in a variety of problematic...