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Finding your way around a version control system can be tricky. It can be massively overwhelming for a newbie, but being well-versed with the terminology and the basics of a version control system like Git is one of the baby steps to start contributing to open source. Being familiar with Git can also help you out of sticky situations in your open source journey. Git is powerful and makes you feel in control—there is not a single way in which you cannot revert to a working version. read more

Functional programming approach in Python can be best illustrated by built-in functions called map(), filter(), and reduce(). This python tutorial teaches you how to use map(), filter() and reduce() functions with easy-to-follow examples.

DevOps brings operations and development closer together, but with GitOps that whole process can be accelerated.

The AlmaLinux team announced the release of the first stable version that is AlmaLinux 8.3. And it is immediately available to download.

This article is Part 8 of the LFCA series, here in this part, you will acquaint yourself with the general system administration commands to monitor basic system metricks and schedule administrative tasks in the Linux system.

There is no room for harassment, bullying, or other forms of abuse in Fedora. We take our Code of Conduct seriously in order to ensure a welcoming community.

scrcpy is a free and open source screen mirroring application that lets you control an Android device from your desktop computer.

Two common tasks that new programmers need to learn are how to read from and write to files stored on a computer. Some examples are when data and configuration files created in one application need to be read by another application, or when a third application needs to write info, warnings, and errors to a log file or to save its results for someone else to use. read more

When debugging code, you're often faced with figuring out when a variable changes. Without any advanced tools, you have the option of using print statements to announce the variables when you expect them to change. However, this is a very ineffective way because the variables could change in many places, and constantly printing them to a terminal is noisy, while printing them to a log file becomes unwieldy. read more

Main power of tcpdump packet sniffing tool comes from its flexible packet filtering rules and versatile protocol dissection capability. As you may know, only the sky is the limit when it comes to packet-level monitoring with tcpdump. This post provides a comprehensive tcpdump cheat sheet with detailed examples.

Diodes Delight has launched a $39 “Piunora” carrier for the Raspberry Pi CM4 with Arduino, ADC, and Qwiic expansion, and Mirko Electronics is prepping a “MirkoPC” carrier with dual HDMI and a DAC. Lately, it seems, most of the interesting embedded Linux news has been about carrier boards for the Raspberry Pi Compute Module 4. […]

If you use Git every day, you probably make a lot of commits. If you're using Git every day in a project with other people, it's safe to assume that everyone is making lots of commits. Every day. And this means you're aware of how disorienting a Git log can become, with a seemingly eternal scroll of changes and no sign of what's been changed. So how do you find out what file changed in a specific commit? It's easier than you think.

The MX Linux 19.4 distribution is now available for download as the fourth maintenance update to the latest MX Linux 19 operating system series based on Debian GNU/Linux 10 “Buster.”

This article is Part 7 of the LFCA series, here in this part, you will acquaint yourself with the general system administration commands to manage software packages in the Linux system.

Net-filter as we all know it’s a firewall in Linux. Firewalld is a dynamic daemon to manage firewalls with support for network zones. In the earlier version, RHEL & CentOS 6 we have been using iptables as a daemon for packet filtering framework. In RHEL/CentOS 7/8 and Fedora iptables interface is being replaced by firewalld.

PHP is one of the most popular server scripting languages used for creating dynamic pages. Many popular CMS is written in PHP including, WordPress, Laravel, Magento, and many more. The PHP 7.4 version was officially released on November 28th, 2019 with a number of new features. It has also few incompatibilities so you should take care before upgrading from the previous version. In this tutorial, we will show you how to install PHP7.4 with Nginx on Ubuntu 20.04 server.

The Ubuntu 21.04 (Hirsute Hippo) operating system is now available for public beta testing ahead of the final release later this month on April 22nd, 2021.

I recently started writing a game where you build words using letter tiles. To create the game, I needed to know the frequency of letters across regular words in the English language, so I could present a useful set of letter tiles. Letter frequency is discussed in various places, including on Wikipedia, but I wanted to calculate the letter frequency myself.

Laravel is an open-source PHP web framework. It was first released in June 2011. With each new release, Laravel is making it easier to implement complicated features without wasting too much time.

Valve released today Proton 6.3-1 as the latest version of their compatibility tool for Steam Play to help you run Microsoft Windows games on your Linux-based operating system.