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Articles on Trending Technologies
Technical articles with clear explanations and examples
Different Ways to Use Column Command in Linux
If you're a Linux user, you're probably familiar with the command-line interface. It's a powerful tool for working with files, directories, and other aspects of your system. However, if you're working with large amounts of text data, it can be challenging to make sense of everything. That's where the column command comes in. This command allows you to format text into columns, specify delimiters, align columns, wrap text, and even sort columns of data. In this article, we'll explore the different ways to use the column command in Linux and how it can help you work more efficiently with text ...
Read MoreDifference Between Sporadic and Aperiodic Real-time Tasks
Real-time systems are critical in aerospace, automotive, medical, and industrial applications where tasks must meet strict timing requirements. Real-time tasks are classified based on their arrival patterns and timing characteristics. Two important types are sporadic tasks and aperiodic tasks, which both involve irregular arrival times but differ in predictability and scheduling requirements. Sporadic Real-time Tasks Sporadic real-time tasks occur at irregular intervals but have a minimum inter-arrival time — a guaranteed minimum time between consecutive task instances. They are triggered by external events and have specific deadlines that must be met. Sporadic Task ...
Read MoreHow to use diff Command in Linux
The diff command in Linux is a powerful command-line utility used to compare the contents of two files or directories line by line and display the differences between them. This tool is essential for developers, system administrators, and anyone working with text files to identify changes, track modifications, and analyze variations in code, configuration files, or documents. Basic File Comparison The most fundamental use of the diff command is comparing two files. The basic syntax is: diff file1 file2 Example Consider two files with slight differences: $ diff file1.txt file2.txt 2c2 ...
Read MoreDisplaying Files Side by Side in Linux
Working with files on Linux often involves comparing or analyzing multiple files at once. A useful way to do this is to view the files side by side in the terminal, allowing for easy comparison and analysis. This article explores various methods to view files side-by-side on Linux, including the diff and sdiff commands, as well as text editors like vim and emacs. Using the diff Command The diff command is a standard Linux utility that compares two files and displays the differences between them. By default, it shows a unified diff format, but can display files side ...
Read MoreInstalling Java on Linux using SSH
Java is a popular programming language widely used for developing various types of software applications. Linux is one of the most popular operating systems for software development due to its stability, security, and open-source nature. In this article, we will discuss how to install Java on Linux using SSH. SSH (Secure Shell) is a secure network protocol used for remote login to a server. It allows users to log in to a remote server and perform various operations using command-line tools. This makes it an excellent choice for installing Java on a Linux machine. We will be using the ...
Read MoreIfconfig Command in Linux
The ifconfig command is an essential network administration tool in Linux systems used to configure network interfaces and display network interface parameters. It allows system administrators to view current network configuration, assign IP addresses, enable/disable interfaces, and modify various network settings from the command line. Syntax The basic syntax of the ifconfig command is − ifconfig [interface] [options] Where interface specifies the network interface name (e.g., eth0, wlan0), and options define the actions to perform. If no interface is specified, ifconfig displays information for all available interfaces. Common Options Interface Control ...
Read MoreDisable and Remove Unwanted Services on RHEL_CentOS 8 Minimal Installation
When you install RHEL/CentOS 8 Minimal, the system comes with a minimal set of pre-installed packages and services to keep the system lightweight and secure. However, over time, as you install new packages and services, your system can become bloated and vulnerable to security threats. In this article, we will discuss how to disable and remove unwanted services and packages on RHEL/CentOS 8 Minimal installation. We will start by identifying unnecessary services and best practices for disabling them to ensure that your system remains secure and functional. Additionally, we will discuss how to remove any packages that are no ...
Read MoreWhat is the computing environment?
A computing environment refers to the platform or framework where computer programs are developed, deployed, and executed. It encompasses the hardware, software, network infrastructure, and operational procedures that support computing activities. Different computing environments are designed to meet specific requirements for performance, scalability, mobility, and resource sharing. The computing environment determines how resources like CPU, memory, storage, and network are allocated and managed. Modern operating systems support multiple computing environments to accommodate diverse user needs and technological requirements. Types of Computing Environments Traditional Computing Traditional computing involves standalone desktop or server systems where applications run locally ...
Read MoreExtracting a WAR File in Linux
WAR (Web ARchive) files are compressed archives used to package Java web applications for deployment. Since WAR files are essentially ZIP archives with a .war extension, they can be extracted using standard Linux command-line tools. This article demonstrates how to extract WAR files on Linux using two primary methods. A WAR file contains all components needed for a web application, including HTML pages, CSS stylesheets, JavaScript files, Java classes, configuration files, and libraries. Extracting these files allows developers to inspect, modify, or troubleshoot web applications. Prerequisites Before extracting WAR files, ensure you have the following tools installed ...
Read MoreBrushless DC Motors
An electric motor is an energy conversion device that converts electrical energy into mechanical energy. Therefore, the input to an electric motor is electricity, while the output of the electric motor is mechanical energy in the form of rotation of the shaft. Based on the type of electrical energy that motor requires to operate, the electric motors are classified into two types, i.e. AC Motor and DC Motor. An AC Motor or alternating current motor is one that transforms electrical energy in the form of alternating current into rotational mechanical energy. On the other hand, an electric motor ...
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