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Articles on Trending Technologies
Technical articles with clear explanations and examples
Best Audio and Video Players for Gnome Desktop
The GNOME desktop is one of the most popular Linux desktop environments, known for its clean and intuitive interface. If you're using GNOME and looking for the best audio and video players, this guide covers the top media players that integrate well with the GNOME ecosystem and provide excellent multimedia experiences. Video Players VLC Media Player VLC Media Player is the most versatile media player available for Linux. This free and open-source player supports virtually all video and audio formats without requiring additional codecs. Beyond playback, VLC offers media conversion, streaming capabilities, and advanced features like video ...
Read MoreHow to Fix Failed to set locale, defaulting to C.UTF-8 in CentOS 8?
The "Failed to set locale, defaulting to C.UTF-8" error in CentOS 8 indicates that the system cannot determine the appropriate language and regional settings. This occurs when locale configuration is missing, incomplete, or corrupted, forcing the system to use a generic fallback locale that may cause display issues, incorrect formatting, and application compatibility problems. Understanding Locales in CentOS 8 Locales define cultural and linguistic preferences including language, character encoding, date/time formats, number formatting, and currency symbols. In CentOS 8, locale settings are stored in /etc/locale.conf and controlled through environment variables like LANG, LC_ALL, and category-specific variables such as ...
Read MoreHow to Use Static and Dynamic Inventories in Ansible?
Ansible is a powerful automation tool that allows you to manage and configure systems, deploy software, and orchestrate advanced IT tasks such as continuous deployments or zero downtime rolling updates. One of the key components of Ansible is the inventory file, which describes the hosts and groups of hosts upon which commands, modules, and tasks in a playbook operate. In this article, we'll explore how to use both static and dynamic inventories in Ansible, complete with examples and their outputs. Static Inventories Static inventories are the simplest way to manage and organize your servers. They are defined ...
Read MoreHow would I get a cron job to run every 30 minutes on Linux?
Crontab is a time-based job scheduler in Linux that allows you to automate the execution of commands, scripts, or programs at specific intervals. To create a cron job that runs every 30 minutes, you need to understand the crontab syntax and configure the appropriate time specification. Understanding Crontab Syntax A cron job entry consists of five time fields followed by the command to execute: * * * * * command_to_run | | | | | | | | | +-- Day of Week (0-6, Sunday=0) | | | +---- Month (1-12) | | +------ Day of ...
Read MoreThe traceroute Command in LINUX
The traceroute command is a network diagnostic tool that allows users to track the route that a packet takes from the source computer to the destination. This tool is widely used by network administrators and engineers to troubleshoot network issues such as high latency, packet loss, and connectivity problems. Traceroute works by sending packets with gradually increasing Time-To-Live (TTL) values to the destination. As each packet reaches a router, the router decrements the TTL value by 1 and discards the packet if the TTL value becomes zero. When a packet is discarded, the router sends back an ICMP "Time ...
Read MoreFastest Method to Check If Two Files Have Same Contents
In today's era of technological advancements, use of computers and various electronic devices has become an essential part of our daily routine. We often find ourselves in situations where we need to compare two files to check if they contain same content or not. This can be a daunting task, especially if files are large in size, and traditional comparison methods can be quite time-consuming. In this article, we will explore fastest methods to check if two files have same contents. What is a File Comparison? A file comparison is a process of comparing two or more files ...
Read More3 Ways to Install Atom Text Editor in openSUSE
Atom is a free, open-source text editor developed by GitHub that provides developers with a highly customizable coding environment. It features extensive plugin support, themes, and cross-platform compatibility across Windows, macOS, and Linux distributions. This article demonstrates three different methods to install Atom text editor on openSUSE Linux distribution. Method 1: Using openSUSE Package Manager (Zypper) The zypper package manager is openSUSE's native tool for installing software from official repositories. This is the most straightforward method for installing Atom. Installation Steps Step 1 − Open the terminal by pressing Ctrl+Alt+T or searching for "Terminal" in the ...
Read MoreLinux tr Command
The tr (translate) command is a Linux utility that allows you to perform various transformations on text input. Whether you need to change case, remove repeating characters, delete characters, set complements, or replace specific characters, tr can handle it all. In this article, we'll explore the various options available with the tr command and show you how to use them to transform text. Syntax The basic syntax of the tr command is as follows − tr [OPTIONS] SET1 [SET2] Where − SET1 is a set of characters to be replaced by the ...
Read MoreDifference Between Microkernel and Monolithic Kernel
In this post, we will understand the difference between microkernel and monolithic kernel − two fundamental approaches to operating system kernel design that differ in how they organize system services and manage resources. Kernel Architecture Comparison Microkernel User Space File System Device Driver Network ...
Read MoreHow to Fix firewall-cmd command not found Error in RHEL/CentOS 7?
Firewall-cmd is a powerful command-line utility that allows you to configure the firewall on Red Hat Enterprise Linux (RHEL) and CentOS 7. It is used to manage the FirewallD daemon, which is responsible for managing the iptables firewall rules. However, some users encounter an error message "firewall-cmd: command not found" when trying to issue commands related to FirewallD. This error can be frustrating for users who rely on FirewallD as it makes it impossible to modify firewall rules using firewall-cmd. The cause of this error is usually due to a missing or corrupt installation of the Firewalld package ...
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