Tags: Tutorial

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square brackets
We continue our tour of square brackets in Bash with a look at how they can act as a command.

Using Square Brackets in Bash: Part 2

Welcome back to our mini-series on square brackets. In the previous article, we looked at various ways square brackets are used at the command line, including globbing. If you've not read that article, you might want to start there. Square brackets can also be used as a command. Yep, for example,...
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Printing from the Linux Command Line

Printing from the Linux command line is easy. You use the lp command to request a print, and lpq to see what print jobs are in the queue, but things get a little more complicated when you want to print double-sided or use portrait mode. And there are lots of other things you might want to do — such...
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Tutorial: Tap the Hidden Power of Your Bash Command History

Last month I wrote about combining a series of Unix commands using pipes. But there are times where you don’t even need pipes to turn a carefully-chosen series of commands into a powerful and convenient home-grown utility. ... The echo command repeats whatever text is entered after it, for example...
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Curly braces
We continue our tour of Bash basics with a closer look at curly braces and how and when to use them.

All about {Curly Braces} in Bash

At this stage of our Bash basics series, it would be hard not to see some crossover between topics. For example, you have already seen a lot of brackets in the examples we have shown over the past several weeks, but the focus has been elsewhere. For the next phase of the series, we’ll take a closer...
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Basics of Object-Oriented Programming

In programming, an object is simply a 'thing'. I know, I know...how can you define something as a 'thing'. Well, let's think about it - What do 'things' have? Attributes, right?  - A dog has four legs, a color, a name, an owner, and a breed. Though there are millions Dogs with countless names,...
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Intro to Python
Start learning Python now with this introduction from Carla Schroder.

Today is a Good Day to Learn Python

Get started learning Python with this tutorial from our archives. The cool thing about Linux and FOSS is also an aggravating thing, which is that sometimes there's too much of a good thing. There is such an abundance of goodies that it can be overwhelming. So I am here to help you decide which...
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ampersand
In Bash, you use the ampersand (&) as the AND operator; learn more in this tutorial.

Logical & in Bash

One would think you could dispatch & in two articles. Turns out you can't. While the first article dealt with using & at the end of commands to push them into the background and then diverged into explaining process management, the second article saw & being used as a way to refer to...
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cockpit
If you’re looking for an easy way to manage a Linux server that includes containers, you should check out Cockpit.

Make Container Management Easy With Cockpit

Learn how to use Cockpit for Linux administration tasks in this tutorial from our archives. If you administer a Linux server, you’ve probably been in search of a solid administration tool. That quest has probably taken you to such software as Webmin and cPanel. But if you’re looking for an easy way...
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How to Use SSH to Proxy Through a Linux Jump Host

Secure Shell (SSH) includes a number of tricks up its sleeve. One particular trick you may not know about is the ability to use a jump host. A jump host is used as an intermediate hop between your source machine and your target destination. In other words, you can access X from Y using a gateway....
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15 Docker Commands You Should Know

In this article we’ll look at 15 Docker CLI commands you should know. If you haven’t yet, check out the rest of this series on Docker concepts, the ecosystem, Dockerfiles, and keeping your images slim. In Part 6 we’ll explore data with Docker. I’ve got a series on Kubernetes in the works too, so...
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