Linux

Overview In the following article, we’ll go through the steps how to convert Virtualbox VMs to QEMU/KVM hypervisor, or in another words, how to convert VM files from VDI to QCOW2 extenstion. This process is useful especially when you need to migrate from virtualbox to KVM or just want to try out the KVM hypervisor without the need to create new machines from the start. What is VDI? VDI(Virtual desktop infrastructure) is an file extension of the HDD disc image file for an Virtual machines that are commonly used by hypervisor solutions such as Virtualbox. ...

This article will act as a guide for a procedure - how to setup NFS server on Alma Linux or in another words and how to create an NFS share on Alma Linux. NFS stands for Network File System is a network file sharing protocol that allows you to share files and directories over the network. You can mount the file systems over a network and use them as your local drive. NFS server is a client-server architecture where multiple clients can mount the shared drive from the NFS server and share resources between Linux systems. By using NFS, you can save space and the cost of storage, especially when you are using cloud instances. ...

Sudo vs su command differences Overview Hello there fellow Linuxers. Hopefully you’re all being practicing your skills or at least learning new skills. On your journey learning or trying to master Linux you must have came across certain commands that you saw others use and you just copy-paste it? For example, I’ve noticed that new users have troubles understanding the difference in (not holy) trinity of commands sudo, su and su- so they don’t use them properly. Ergo, on today’s menu is a special about sudo vs su command differences -. Let’s get started. ...

Overview Here we will show couple of ways/tips/hints on how to create multiple directories in Linux. The steps we want to cover in this article are how to create multiple directories in linux and sub-directories with the mkdir tool and for each individual example to create the directories with only one command. In other words, we want to run one mkdir command in terminal that will enables us to create multiple directories and sub-directories at once. For those are curios and keen on to learn, we also covered the steps on how to delte folders in this »>POST«<. ...

How to upgrade Debian 11 to Debian 12 Overview Hi there fellow Linuxers! On today’s article we’re all about how to upgrade Debian, in this case, how to upgrade Debian 11 to Debian 12. For my upgrade scenario, I’ll be using a VM that runs Debian I use for one my Docker servers for my home lab and is in dire need for an upgrade. Gathering info To check your exact version you can use: ...

How to delete lines from a file using sed Overview Today we’re looking at one of the powerfull tools you can add in your Linux toolbelt and yet underrated standard tool – sed. Sed, shortly for stream editor, is a command with which you can do various actions on a file, amongst which are search, find and replace, insert or delete. And “delete” part is what we’re focused at this time, meaning that we’re covering various methods how to delete lines from a file using sed. Without further ado, let’s get our hands busy, so you’ll see how handy sed really is. ...

How to kill a process in Linux Overview Hi there fellow Linuxers. Hopefully you’re all well, primed and ready for new learning adventure because this one is going to be one hell of a ride. Every Linux user that comes to age faces this so-called rite of passage. The very moment you start killing processes is very moment that you entered Linux adulthood. I’m joking of course, but it’s not far from the truth. A moment you start carrying out ‘seek and destroy’ missions on processes is a moment that you’re a on path to be an experienced Linux user. ...

Overview In this post we will go through the process on how to mount a network shared drive on Linux. We are going to cover the methods with cifs-utils in order to mount the network shared drive with the SMB protocol and the NFS share as well, by using the nfs tools. Also in this post, we will cover the steps how to mount the network drives permanently and to mount automatically on boot. ...

Linux file permissions Overview Hi there fellow Linux explorers! Are you ready to take another dive into the depths of Linux waters? Hopefully you’re ready for today’s topic, because we’re about to dwell in linux file permissions and try to learn and explore as much as possible of this in-depth topic in a single post. File permissions in Linux explained As a beginner you’ve probably been puzzled the first time you listed files and folders. ...

Rename files and directories in Linux Overview Hello there Linux aficionados! Today’s chapter is all about how to rename files and directories in Linux using many different tools in cli and applying various diferrent techniques. We’ll also cover some example how to rename multiple files and directories in linux, aka - batch renaming. Last time we discussed how to copy files and directories and I mentioned ‘mv’ command. Like its name suggests, it’s used primarily for moving files or directories from one destination to another, practically doing cut & paste operations. But appart from that it’s also capable of renaming the files and directories as well and we’re going to start of this post with introducing the rename files and directories in linux with ‘mv’. ...

Overview Hello fellow Linux enthusiasts. Hope you’re all well and ready to broaden your knowledge. Today’s topic will be about how to copy files and folders in Linux. And no, it’s with “right-click and copy file”. We do this the cool way, the terminal way. Just kidding… without much further delay let’s get our hands dirty. We’ll be covering several different methods and tools we can utilize that will allow us to perfom the copy actions for various scenarios and use cases. ...

Overview Vim is an extremely powerful text editor and can be especially useful when editing larger files. It can speed up/ease up the process. We’ll be looking at some essential Vim commands for navigation and editing text.This article focuses on every day Vim usage, meaning - to help out or increase productivity for a individual or to jump start their journey working in Vim(vim navigation and editing). Vim has multiple working modes and in this post we’ll cover - Normal, Command, Visual and Insert mode, which are modes for every day usage. ...