A user can be a member of one primary and one or several secondary (supplementary) groups in Linux. The file '/etc/group' defines group membership for each user in the Linux system. In this tutorial, we will learn how to remove [...]
Slavisa Milojkovic
About Slavisa Milojkovic
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How to Install RPM on CentOS
Usually, a user installs packages using the yum command line utility. The official CentOS repositories contain thousands of RPM packages, but in some cases, you may come across an RPM file that is not in any repository. Some software authors [...]
12:17 am
How to Mount a Drive in Linux
Mount is a command used in Linux to attached filesystems and drives and umount command is used to detach (unmount) any attached file systems or devices. In this tutorial, we will learn how to mount (attach) a drive in Linux [...]
11:46 am
How to Install Fonts on Ubuntu
In Ubuntu, you already have many fonts installed by default, but there might be a time you would want to install some additional fonts. Or maybe you want to install Microsoft fonts and Google web fonts for off-line use or [...]
6:20 pm
Set and List Environment Variables in Linux
In Linux based systems you can set dynamic named values as environment variables. Those values are stored within the system and are used by command line applications. To put it simply, an environment variable is a variable with a name [...]
2:20 am
How to Install Docker on CentOS 8
CentOS 8 comes with its own tools, buildah and podman, which are compatible with existing docker images and work without relying on a daemon, allowing the creation of containers as normal users, without the need of special permissions. These tools [...]
4:29 am
How to Install Pip on CentOS 8
In this tutorial, we will install Python pip on CentOS 8 using the yum package manager and cover the basics of how to install and manage Python packages with pip. In the CentOS 8 repository AppStream, there are both pip [...]
2:17 am
How to Install Cockpit on CentOS 8
Cockpit is a free and open-source web based server management software. It has a pretty web console which allows system administrators to easily perform tasks such as storage administration, network configuration, starting Docker containers, check out the server performance, start [...]
10:08 am
How to Append to End of a File in Linux
In this tutorial, we learn different ways to append text to the end of a file in Linux. You can achieve this using several methods in Linux, but the simplest one is to redirect the command output to the desired [...]
8:50 am
How to Configure sources.list on Debian 10
Debian is one of the most popular Linux distributions of all time, and now it got a new version release Debian 10 Buster. There is a lot of derivatives that came out of Debian, of which the most popular is [...]
4:00 am
Horde vs Roundcube vs Squirrelmail - Which Works Best
Webmail is a great way to access your emails from different devices and when you are away from your home. Now, most web hosting companies include email with their server plans. And all of them offer the same three, webmail [...]
3:00 am
How to Fix 'add-apt-repository command not found' on Ubuntu & Debian
In some cases on Linux Mint, Linux Lite, Zorin OS, elementary OS and other Ubuntu based distros, as well as Ubuntu and Debian, you’ll see the error that add-apt-repository command is missing. $ sudo: add-apt-repository: command not found This tutorial [...]
3:00 am
How to List Cron Jobs in Linux
For linux to automatically perform tasks that you would otherwise have to perform yourself, such as running scripts and executing specific commands, we use a tool called cron. On Linux systems, the cron utility is the preferred way to automate [...]
6:00 am
How to Find/Change Ubuntu Default Root Password
Before I explain how to change the default password, its good to know about "Root SuperUser" and "sudo user" in Linux. In any Linux, as also in any Ubuntu version, there is a SuperUser named root, the Windows equivalent of [...]
2:30 pm