Navigating directories in Linux using the cd command is usually straightforward, but sometimes you might run into issues. Here’s a step-by-step guide to troubleshoot and resolve common problems when you can’t cd into a directory. 1. Check for Typos The first step is to ensure the directory name is spelled correctly. A typo can prevent you from accessing the … Read more
Introduction The OOM Killer (Out-of-Memory Killer) is a critical mechanism in Linux that steps in when the system runs out of memory. It terminates processes to free up memory and keep the system running. While it’s a lifesaver in low-memory situations, its behavior can sometimes seem arbitrary or confusing. To help you understand the concept behind the … Read more
Encountering issues when trying to delete, copy, rename, or move a file in Linux can be frustrating. This guide outlines common causes and solutions to help you troubleshoot and resolve these problems efficiently. Common Causes and Solutions 1. Does the File Actually Exist? Sometimes, the file you are trying to manipulate might not exist, or the … Read more
Discover how to use strace to diagnose and resolve application issues in Linux environments. This powerful tool provides detailed insights into system calls, helping developers, system administrators, and support engineers troubleshoot performance bottlenecks, crashes, and network problems effectively. What is strace? strace is a diagnostic, debugging, and instructional utility for Linux. It intercepts and records the system calls … Read more
Introduction In Linux, certain file and directory attributes can only be accessed or modified using specific commands. These attributes allow you to restrict file operations, such as preventing deletion or modification, even by the root user. This functionality is particularly helpful for securing critical files and directories. In this guide, we’ll cover two essential commands: … Read more
A kernel panic is a critical error that occurs when the operating system detects an issue at the kernel level, causing it to freeze and stop functioning. While it may sound alarming, understanding what causes a kernel panic and how to address it can help you resolve the issue calmly and effectively—whether you’re working with … Read more