It's easy to add a few lines of text to files on Linux, but there are tools that make it easier to add many lines. There are a number of ways to add text to files on Linux systems without having to ...

In the world of Linux, the command line is an incredibly powerful tool for managing and manipulating data. One of the most common tasks that Linux users face is processing and extracting information ...

CentOS is a free version of the Red Hat Enterprise Linux operating system. It is built from the same source code as Red Hat and is designed to be used in a business environment. Unlike Red Hat, it ...

Sed is a non-interactive text editor that operates on piped input or text files. By providing it with instructions, you can make it modify and process text in files or streams. The most common use ...

Hidden files are a standard feature in Linux. Some applications save configuration files and other data in hidden files or folders that aren't visible by default. Fortunately, Linux makes working with ...

Linux provides many commands for examining the contents of files including cat, more, head and tail, but that’s just a start. For one thing, even the most obvious commands have a lot more options than ...

OverTheWire is a collection of web-based games that challenge you to perform tasks. One of the best things about the OverTheWire games is that they teach you how to solve problems on your own and do ...