Linux - GravityDevOps

Searching Files & Directories: find, locate, grep

Searching for files and directories in Linux is an essential skill, whether you're an administrator, developer, or casual user. Linux provides powerful tools like find, locate, and grep to help…

Saurabh Khan March 1, 2025

Linux

Complete Tutorial on File Editors: nano, vi, and vim

Text editors are essential tools in the Linux command-line environment for editing configuration files, writing scripts, and managing documents. Among the most widely used editors are: nano: A simple and…

Saurabh Khan March 1, 2025

Linux

File Permissions in Linux (chmod, chown, chgrp) – Complete Tutorial

File permissions are essential in Linux to ensure security and proper access control. In this tutorial, we'll cover file permissions, and how to modify them using the chmod, chown, and…

Saurabh Khan March 1, 2025

Linux

Essential Linux Commands

Linux commands are essential for navigating and managing files in a Linux-based system. This tutorial covers eight fundamental Linux commands: ls (List directory contents) cd (Change directory) pwd (Print working…

Saurabh Khan March 1, 2025

Linux

Understanding the Linux Boot Process: A Step-by-Step Guide

The Linux boot process is a sequence of events that occur from the moment a system is powered on until the user gets a fully functional operating system. It involves…

Saurabh Khan March 1, 2025

Linux

How to Fix NtCreateFile (\Device\VBoxDrvStub) failed: 0xc0000034 (VirtualBox Error)

Quick Answer: The VirtualBox error NtCreateFile(\Device\VBoxDrvStub) failed: 0xc0000034 STATUS_OBJECT_NAME_NOT_FOUND means VirtualBox's kernel driver (VBoxDrv / VBoxDrvStub) failed to load. The fastest fixes are: run VirtualBox as Administrator, repair/reinstall VirtualBox, and…

Saurabh Khan February 25, 2025

Linux

Linux Boot Process: A Comprehensive Guide

Linux, like any other operating system, follows a structured boot process when a system is powered on. Understanding this process is crucial for system administrators, DevOps engineers, and Linux enthusiasts.…

Saurabh Khan February 25, 2025

Linux

Basic Linux Architecture: Kernel, Shell & Filesystem Explained

Quick Answer: The Linux architecture has four main layers: the hardware, the kernel (the core that manages hardware and resources), the shell (the interface that runs your commands), and the…

Saurabh Khan February 25, 2025

Linux

What is Linux? Why Use Linux? and Linux Distributions: Ubuntu, CentOS, RHEL, Debian

Introduction Linux is an open-source, Unix-like operating system that powers a vast majority of the world's servers, embedded systems, and even personal computers. It is widely known for its stability,…

Saurabh Khan February 25, 2025

Linux

Grep Command in Linux With Examples

The grep command is mainly used to simplify and automate text processing and data extraction tasks.System administrators and developers use grep to search log files for specific entries, find variables…

Saurabh Khan December 2, 2024