Author: Rahul

I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..

Welcome to our comprehensive guide on installing PIP, the Python Package Installer, on macOS. PIP is an essential tool for any Python developer as it simplifies the process of installing and managing Python packages. This tutorial is tailor-made for macOS users and assumes a basic understanding of using the Terminal. Prerequisites Before proceeding with the installation of PIP, it’s crucial to ensure that Python is already installed on your system. PIP is included by default with Python versions 3.4 and later. You can quickly check your Python version by opening the Terminal and typing `python –version` or `python3 –version`. If…

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MongoDB, a leading NoSQL database, is renowned for its flexibility and performance in handling diverse data types, including dates. In this guide, we’ll explore how to effectively query objects stored in a MongoDB database between two specific dates – a common requirement for many applications dealing with time-sensitive data. Understanding Date Storage in MongoDB Before diving into queries, it’s crucial to understand how MongoDB stores date objects. MongoDB uses the BSON format, which includes a specific Date type. Dates in MongoDB are stored as 64-bit integers representing milliseconds since the Unix epoch (Jan 1, 1970). This precision allows for detailed…

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Ubuntu and other Debian based system logs every package operation, like installations, updates, and removals in the /var/log/apt directory. You should always check these logs to keep tracks about the packages on your system. This information can be accessed using several methods. This tutorial will help you with the methods of accessible package update history on your Debian systems. 1. The APT History Log The APT package management system keeps a log of all the activities in a history file. You can view this file using a text editor or by using the cat command: cat /var/log/apt/history.log This command will…

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In the world of text processing on Unix-like systems, grep is an indispensable tool. Short for “Global Regular Expression Print”, grep is used for searching within files for lines that match a given pattern. In this article, we’ll focus on a specific use case of grep: extracting contents that come after a matching pattern. What is grep? `grep` is a command-line utility that searches through text and prints out lines that match a specified pattern. It’s widely used for searching through large logs, coding, or any text files. Regular expressions (regex), which provide a powerful way to specify patterns, are…

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In web development, it’s important to be flexible and able to customize things. If you use Next.js, you might need to change the default port your app runs on. This could be to avoid clashes with other services or because your deployment environment requires it. Knowing how to change the port is useful. This tutorial will help you with step-by-step instructions to change the port in both development and production environments. With these steps, you can run your Next.js app on any port you need, making development and deployment easier. Prerequisites Basic knowledge of JavaScript and Node.js. Next.js application set…

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Python is a powerful, versatile programming language renowned for its simplicity and readability, making it an excellent choice for both beginners and experienced developers. This article will provide a detailed guide on how to install Python on a Debian 12 system from the default repositories and how to install previous versions from external PPAs (Personal Package Archives). Installing Python from Default Repositories The Debian 12 default repositories contain the latest Python versions. Here is a step-by-step guide on how to install Python from these repositories: 1. Update the Packages List First, ensure your system’s package list is up-to-date. Open the…

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As the open-source community eagerly anticipated, Ubuntu 24.04 LTS, codenamed “Noble Numbat,” has finally arrived, marking another significant milestone in the journey of one of the most popular Linux distributions worldwide. This long-term support (LTS) release, brought to us by Canonical, promises an array of enhancements, security upgrades, and performance boosts, all while maintaining the stability and reliability that Ubuntu is known for. In this comprehensive review, we delve into what makes Ubuntu 24.04 LTS stand out, its new features, and whether it lives up to the expectations set by its predecessors. 1. Enhanced Desktop Experience with GNOME 46 One…

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In this guide, we will learn how to run Linux commands using Python. Python is a powerful programming language that can help automate many tasks, including running commands on a Linux system. By the end of this guide, you’ll be able to use Python to execute Linux commands easily and efficiently. Whether you’re a beginner or an experienced programmer, this tutorial will provide simple steps and examples to get you started. Using the os Module The os module is part of the Python Standard Library, which provides a way of using operating system-dependent functionality. One of the simplest ways to…

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Before diving into the steps, it’s important to understand what a merge conflict is. A merge conflict occurs when two branches in a Git repository have different changes in the same lines of a file or when one branch has a file that has been deleted in another branch. Git cannot automatically decide which change to accept, so it pauses the merge operation and asks you to resolve the conflict. Step-by-Step Guide to Resolving Merge Conflicts 1. Identify the Conflicts Git will output a message indicating that conflicts need to be resolved. Run git status to list the files with…

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In the world of software development, managing background processes is crucial for keeping applications running smoothly. PM2 is a popular tool for managing Node.js applications. This article explains how to use the –update-env option in PM2 for restarting and reloading processes. Understanding PM2 PM2 is a tool for managing JavaScript applications, mainly for Node.js. It helps keep applications online, manage log files, and balance the load on your apps. The Need for –update-env When updating your Node.js application or changing its environment settings, you need to restart or reload the processes. The –update-env option ensures that the updated environment variables…

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