The environment variables on a Linux system contain changing values that are referenced mainly by scripts and system programs. Environment variables differ from shell variables, because they can be accessed by any user or process across the entire system. In this tutorial, you will learn how to print environment variables on Linux.
development
How to Extend LEDE/OpenWRT System Storage with an USB Device
LEDE/OpenWRT is a Linux-based operating system which can be used as an alternative to proprietary firmwares on a wide range of routers.
Installing it provides increased security, let us tweak our router and give us a wide range of software packages to install from the system repositories.
Installing packages is
very easy, thanks to the opkg package manager, but often the available
space on common routers is quite limited. In this tutorial we will see how to
extend the available system space using an USB device.
How to install PyCharm on Ubuntu 20.04 Linux Desktop
PyCharm is a graphical IDE (integrated development environment) that can be installed on Ubuntu Desktop. Many Python programmers enjoy using PyCharm because it can be used to analyze code, debug programs, and is integrated with Git and other version control systems, as well as web development applications. In this tutorial, you will see how to install PyCharm on Ubuntu 20.04 Focal Fossa Linux.
Install Python 2 on Ubuntu 20.04 Focal Fossa Linux
This tutorial will show how to install Python2 for Ubuntu 20.04 Focal Fossa Linux. Python 2 has not been the default installed version on Ubuntu for a few years, but it’s still possible to install Python2 and to install Python 2.7 on Ubuntu.
How to run script on startup on Ubuntu 22.04 Jammy Jellyfish Server/Desktop
The purpose of this article is to configure a script such as a Bash script or Python script to run upon system startup in Ubuntu 22.04 Jammy Jellyfish Server/Desktop.
APACHE web server and SSL authentication
This tutorial describes configuration techniques of module the Apache SSL module, which extends the functionality of Apache web server to support SSL protocol. The tutorial will deal with authentication of server (One-way SSL authentication), as well as it will also include authentication of clients by using certificates (Two-way SSL authentication).
C++ : Understanding pointers
This tutorial is intended for all programing enthusiasts on all levels that wish to understand pointers in the C++ language. All code presented here is not compiler-specific, and all examples will be written in plain ANSI C++. Debates about pointers can stretch for miles, and you would need to go really far to master it all.
Android system architecture
The purpose of this tutorial is to explore the system architecture of the Android mobile operating system. This will give you a general idea of the various layers involved in Android and how they relate to each other. We will also talk about how Android relates to Linux itself.
How to reset Kali Linux root password
It’s possible to reset Kali Linux password in the event that you are no longer able to login to the root user account. This happens if you haven’t logged in for a while and have since forgot Kali Linux password.
Write first bash script
After reading this short shell scripting tutorial, you will be able to to create and execute your own Bash shell script. No previous knowledge of shell scripting is required. However, you are expected to have some knowledge of how to start a command line terminal and how to edit text files with some text editor of your choice.
How to install Kubernetes on Ubuntu 22.04 Jammy Jellyfish Linux
Kubernetes is leading software in container orchestration. Kubernetes works by managing clusters, which is simply a set of hosts meant for running containerized applications. In order to have a Kubernetes cluster, you need a minimum of two nodes – a master node and a worker node. Of course, you can expand the cluster by adding as many worker nodes as you need.
How To Install Git on Ubuntu 22.04 LTS Jammy Jellyfish Linux
Git is a versioning control system, mainly used by programmers to issue changes to applications and keep track of the revisions. However, it’s also commonly used by everyday users, since they’re able to browse and download the source code and binaries of millions of applications from websites like GitHub and GitLab.