PHP is a popular, free and opensource scripting language used mainly for web development. At the moment the current version of PHP (at the time of writing this tutorial) is PHP 7.3.14. However, CentOS 7 ships with PHP 5.4 by [...]
Top 48 Linux Interview Questions & Answers
Are you preparing for a Linux interview? We have prepared some of the commonly asked Linux interview questions and their answers. If you are a beginner (with some knowledge of Linux or having certification) or with professional Linux administration experience, [...]
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 [...]
How to Delete a Directory in Linux
Earlier in one of the tutorials, we have explained how to create directory in Linux. Now let's check how to delete a directory in Linux which is either empty or having subdirectories with files. This is especially when you need [...]
How to Install JIRA on Ubuntu Linux
Developed by Atlassian, JIRA is a proprietary and comprehensive software tool mainly used for project management, issue tracking, and bug fixing. JIRA comes with an intuitive dashboard that helps you track issues. These issues could be software defects or bugs, [...]
How to Get Current Date and Time in Python
In this tutorial, you will learn the DateTime module supplies classes for manipulating dates and times in both simple and complex ways in Python 3.x. The datetime module contains datetime class, to get current date and time you will use [...]
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 [...]
MBR vs GPT - Things to Know When Partitioning (Screenshots)
With the evolution of technology, it exists now many ways to store and organize data. This brings along new devices with a large amount of storage capacity. To manipulate such a large amount of capacity, you will need to use [...]
How to Stop and Disable Firewall on CentOS 8
A firewall is a security feature that filters incoming and outgoing traffic and keeps at bay potentially malicious applications. Additionally, a firewall gives the systems administrator the authority to determine which services and ports to allow and which ones to [...]
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 [...]
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 [...]
Lightweight Linux Distros for Old Laptop (2019)
Do not discard that old PC or laptop yet. You can use a lightweight Linux distro to make them as good as new. Some of these Linux distros are specifically for use in older machines. You can use any of [...]
How to Disable SELinux on CentOS 8
SELinux, also known as Security-Enhanced Linux, is a security feature embedded in the Linux kernel. SELinux leverages Mandatory Access controls (MAC) to confine users to certain rules and policies and prevents them from performing unauthorized tasks on the Linux system [...]
How to Install and Use Grub Customizer on Ubuntu
Grub customizer is a handy graphical tool that you can use to change the default settings in the grub bootloader. The tool allows you to add, or rearrange entries in the boot menu. Additionally, You can modify kernel parameters, change [...]