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In today's time, everyone needs things instantly, whether it is information or products. Hence, the demand for quick commerce has increased, but the most important thing users want to know is how these companies manage quick commerce. So, Let's dive into the key factors that make quick commerce incredibly efficient. What is Quick Commerce? Quick commerce means that you can deliver your products and services instantly within 10-20 minutes at the doorstep of every customer. It is also called Q-commerce. The food delivery industry started this approach a long time ago but slowly it advanced its approach and now it ... Read More
Disk space is a precious resource on any Linux system. Whether you're running a small home server or a large enterprise cluster, it's crucial to monitor disk usage to prevent running out of space, identify potential issues, and optimize storage allocation. This comprehensive tutorial will explore various command-line tools and techniques for effectively monitoring disk usage on Linux, empowering you to keep your storage under control. Command-Line Tools for Monitoring Disk Usage Linux provides a rich set of command-line tools for monitoring disk space. Here are some of the most essential ones − df (Disk Free) The df command provides ... Read More
Whether you're examining logs, configuring system settings, or writing scripts, the ability to quickly view and manipulate file content is essential. Three fundamental commands that empower you to do just that are head, tail, and cat. In this tutorial, we will delve into these commands, exploring their functionalities, options, and practical use cases. Introducing cat: Concatenate and Display Files The cat command (short for "concatenate") is the most basic yet versatile tool for displaying file content. Its primary function is to read files and print their contents to standard output (your terminal). Basic Usage of cat Command To display the ... Read More
A grid is a 2-dimensional arrangement of squares divided into rows and columns. From a given N*N square grid we have to calculate the total number of squares possible. There are multiple ways to find the number of squares in a given grid. In this article, we are going to learn about various approaches for calculating the number of squares in a given grid of size N*N. Direct Formula for Finding the Number of Squares in an N*N Grid The direct formula for finding the total number of squares in an N * N grid is Total Number of ... Read More
Secure Shell (SSH) stands as the cornerstone of remote server administration. It provides a secure channel for accessing and managing your servers. However, this essential service is also a prime target for malicious actors. Brute-force attacks, where attackers systematically try numerous username and password combinations, pose a significant threat to SSH security. DenyHosts offers a straightforward, albeit older, approach to mitigating these attacks by automatically blocking IP addresses after repeated failed login attempts. This tutorial provides a detailed walk through of installing and configuring DenyHosts on the latest Ubuntu LTS Version 24.04. Important Note − It's crucial to understand that ... Read More
Encountering a Linux system that refuses to boot can be a stressful experience. However, with a systematic approach and the right tools, you can often diagnose and resolve these issues. Here we will walk you through common boot problems, debugging techniques, and effective solutions to get your Linux system back on track. Understanding the Boot Process A brief recap of the boot process is helpful for troubleshooting − BIOS/UEFI − Hardware initialization and boot device selection. Bootloader (GRUB/systemd-boot) − Loads the kernel and initial RAM disk. Kernel ... Read More
Proper user management is a crucial aspect of Linux system administration. When a user no longer needs access to a system, it's essential to delete their account and associated files securely. This comprehensive tutorial will explain how to delete user accounts and their home directories in Linux, covering different methods and important considerations for maintaining system security and data integrity. Why Delete User Accounts? Deleting user accounts is necessary for several reasons − Security − Removing inactive accounts prevents unauthorized access to the system. Resource Management − Deleting accounts frees up disk space occupied by user files and home ... Read More
Managing running processes is a fundamental aspect of Linux system administration. Whether you need to troubleshoot performance issues, stop runaway applications, or simply understand what's happening on your system, knowing how to find and kill the processes is essential. This comprehensive tutorial will explore various command-line tools and techniques for effectively managing processes in Linux. Understanding Processes in Linux In Linux, a process is an instance of a running program. Each process has a unique Process ID (PID), which is used to identify and manage it. Processes can be in various states, such as running, sleeping, or stopped. Finding Running ... Read More
Understanding and managing file types and system time are fundamental skills for any Linux user or system administrator. This comprehensive tutorial will delve into these two essential aspects of Linux, providing practical examples and explanations to help you navigate and control your system effectively. Part 1: Managing File Types in Linux Linux treats everything as a file, including directories, devices, and even processes. However, different file types exist, each with its own characteristics and purpose. Common Linux File Types Given below is a list of the most common types of Linux files − Regular Files ... Read More
In Linux, the command line is a powerful tool for managing and manipulating your system. Often, you'll need to save the output of a command to a file for later analysis, reporting, or further processing. This comprehensive guide will explore various methods for saving command output to a file in Linux, covering different techniques, options, and practical use cases. Why Save Command Output? Saving command output to a file is useful for several reasons − Logging − Capturing command output for auditing, troubleshooting, or monitoring system activity. Reporting − Generating reports ... Read More