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In the Linux Essentials series, we’ll go over the basics of a Linux command or feature in every episode. This time around, it’s all about the echo command. The echo command allows you to print text, but it also allows you to do other things as well, such as printing the contents of variables.
Bash is the default shell in the majority of Linux distributions, and it has countless features and tricks to make you more efficient. Bash keeps a history of the commands you’ve typed at the prompt, but most people aren’t aware of additional functionality that the history provides you. In this episode of Linux Essentials, Jay describes not only how to use the history command, but also some techniques to make better use of it.
Running a distribution of Linux on your laptop or desktop is a lot of fun, but that’s not all Linux can do. Using the “live mode” of a distribution can assist you with recovering data from a PC that won’t boot. In this video, Jay shows the process of booting a distribution in live mode to assist in the process of recovering files. As long as your hard disk hasn’t totally failed, this process will enable you to copy its data to an external USB drive.
The Linux Essentials series on LearnLinuxTV consists of mostly stand-alone episodes that are each dedicated to a specific command or feature in Linux. In this episode, we’ll go over the basics of the usermod command.
Having a dashboard installed on your Linux server can be a great way of enhancing remote management capabilities, as well as getting an overview of its resource usage. In this video, I’ll show you Cockpit which is an awesome management system you can install very easily.
When you need to run Linux commands with elevated privileges, sudo is the tried and true method to run commands as another user (such as root). In this introductory tutorial, we’ll take a look at some of the inner-workings of sudo.
There’s no shortage of monitoring tools available for Linux servers and workstations, but htop is a a classic. By installing htop, you can see an overview of your resource usage, including meters for CPU, RAM, Swap, and more. In this video, I’ll give you an overview of htop.
In various tutorials throughout the history of LearnLinuxTV, we’ve gone over the importance of using public keys with OpenSSH. But what do you do when you have multiple clients you work with, how do you manage keys between them? In this video, we’ll go through an example scenario where we have three clients, and we need to maintain multiple SSH keys for each.
When creating a deployment image or template for distributing Linux to devices or servers, it’s a good idea to make sure that you reset the host keys for SSH. In this video, I’ll show you an easy method I found for automating this.
You can find the systemd unit file I used in the video here.
(more…)The ps command is useful for taking a look at the processes that are running on your Linux system. In this video, I’ll show you the basics of the ps command, and some variations you can use to show the output in different ways.
In this episode of Awesome Linux Tools, the spotlight is on Lynis – a really awesome utility you can use to get a better understanding of the overall security hygiene of your server. In this video, Jay will show you how to install it, and also how to run an audit.
The number of command combinations you can come up with on the Linux command-line is seemingly endless, and there are some real gems out there that you might not know about. In this video, Jay goes over some of his favorite command combos, time-saving tricks, and other various tips he wish he learned sooner. In this video, you’ll find all kinds of things to add to your command-line toolbox.
