AWK is a pattern-scanning and processing language that searches one or more files for records (usually lines) that match specified patterns. It processes lines by performing actions, such as writing ...

B ash scripts are powerful, but with power comes great responsibility. It’s very easy for sloppy or poorly-planned code to do ...

This article is reprinted from the book A Practical Guide to Linux Commands, Editors, and Shell Programming 3rd edition, with permission of the author and publisher ...

While Linux isn't strictly a text-only system, it has a reputation for making better use of plain text than any other operating system. While many tools cater to programmers, writers, and authors can ...

It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t presume to tell you that ...

Most people familiar with information technology or the computer world have at least heard of Linux. For years now, the open-source operating system has been popular among those who prefer it to more ...

In the world of Linux, the sort command is a powerful tool that enables you to efficiently sort and organize data in various ways. Whether you're dealing with simple text files or complex datasets, ...

For most of us who didn’t do well in high school English class, spell checkers are a real game-changer. Sure, you can still swap a “to” and a “too,” but a spell checker will catch a lot of typos. But ...