Linux Troubleshooting & Tips

Concatenating strings in Linux BASH is often necessary when performing data processing tasks. This article will dive into the various methodologies to concatenate strings, each accompanied by practical examples to illuminate their application in real-world scenarios. Prerequisites Before embarking on the journey of string concatenation in Bash, certain prerequisites must be met to ensure a … Read more

Appending text to files is a fundamental task in Unix and Linux systems, allowing users to add information to the end of a file without altering its existing content. The cat command, alongside utilities like echo and printf, plays a crucial role in file manipulation tasks. This article delves into how to use cat to … Read more

In Ubuntu, encountering a program that refuses to respond is not uncommon. Unlike Windows, where a simple Ctrl + Alt + Delete offers a straightforward solution through the Task Manager, Ubuntu requires a different approach. This article delves into the various methods available to force quit unresponsive programs in Ubuntu. From utilizing the System Monitor … Read more

Just jumped into Linux? Then the systemctl command is something you’ll use a lot. It’s a handy tool for managing services in Linux. Whether you’re a newbie or a pro, mastering systemctl on Ubuntu can make Linux management a breeze. Why Care About systemctl? So, why is systemctl a big deal? Think of it as … Read more

Linux offers a robust set of tools for text processing and data manipulation. Among them, awk and cut are widely used for parsing and extracting specific data from files and command outputs. This guide will focus on using awk and cut to parse decimal numbers effectively. By the end of this article, you will have … Read more

The Microsoft .NET framework is a powerful and versatile platform for developing a wide range of applications. Initially, .NET was restricted to Windows environments, but with the advent of .NET Core, you can now develop .NET applications on macOS and Linux too. This blog will walk you through the process of creating a .NET project … Read more

BlueStacks lets you run Android apps on your Linux desktop, bridging mobile and desktop systems. With growing demand for Android apps across industries, this emulator has become an essential tool for developers and casual users alike. For Linux enthusiasts, BlueStacks offers a smooth way to expand what their systems can do. What Is BlueStacks? BlueStacks … Read more

In Linux, every file and directory has an associated set of permissions. These permissions determine who can read, write, or execute the file or directory. Using the chmod command is a fundamental aspect of Linux and Unix-like operating systems. We’ll show you several Linux permissions calculators and examples of how to use the chmod comand. … Read more

Understanding the sleep Command in Shell Scripting The sleep command is a simple yet handy tool in shell scripting. Its syntax looks like this: • NUMBER: The duration for which the command pauses. • SUFFIX (optional): Defines the unit of time. • s: seconds (default if no suffix is used) • m: minutes • h: … Read more

When it comes to breathing new life into an older computer or optimizing a low-spec machine, lightweight Linux distributions are often the best solution. These operating systems are designed to be super-efficient, meaning they require fewer resources while still delivering all the functionality you need. The beauty of lightweight Linux distros is how versatile they … Read more

This guide explains how to restart the SSH service in Solaris 10 and Solaris 11. These steps will help ensure the SSH service is up and running smoothly. If you’re looking for SSH restart commands for other Linux distributions, here’s a quick reference table: Linux Distribution Init System Command to Restart SSH Ubuntu 16.04 and … Read more

Shell script arguments are a powerful way to make your scripts flexible, reusable, and interactive. These arguments allow you to pass data or instructions directly to the script from the command line, eliminating the need for hardcoding values or relying on user prompts during execution. One of the main advantages of using arguments is automation. … Read more

You will learn how to manage dependencies during RPM installation on Linux servers such as CentOS, RHEL, Fedora, and Ubuntu. We’ll provide step-by-step instructions on how to properly handle dependency issues and solve common issues. Whether you build your own RPM or use third-party, we’ll cover it in this guide. About RPM and Dependencies Each … Read more

Ubuntu is designed around DEB packages and the APT package manager, but certain enterprise applications and vendor software require RPM packages. If you’re working in a mixed Linux environment or need to build RPMs from source on Ubuntu, this guide will walk you through installing rpmbuild, setting up dependencies, and successfully creating an RPM package … Read more

If you’re managing a Linux system, you might need to track down files that belong to a specific group. This can be crucial for security audits, preventing unauthorized access, and maintaining proper system organization. Whether you’re troubleshooting permissions, cleaning up storage, or auditing security, knowing how to find files owned by a group in Linux … Read more

In Linux, every file belongs to a user and a group. Understanding file ownership is key to managing access, security, and system organization. There are many reasons to find files owned by a particular user—tracking down rogue files, cleaning up old user accounts, or performing security audits. In this guide, we’ll walk through different ways … Read more

Sometimes, you need to add a line of text to the start of a file on Linux—maybe for logging, configuration, or just for organization. While you could open the file and manually paste the text, that’s not exactly efficient, especially if you’re dealing with multiple files. Luckily, Linux gives you a few quick ways to … Read more

Automating tasks in Linux often requires managing user authentication efficiently. However, the passwd command typically prompts for manual input, making automation difficult. Fortunately, you can bypass interactive prompts using tools like chpasswd, echo, or expect. In this guide, you’ll learn multiple methods to automate password changes, improve security practices, and integrate these techniques into your … Read more

If you need to find files less than a certain size using Bash, the find command is your best bet. Whether you’re cleaning up your system, managing logs, or just looking for small files, this command makes it quick and easy. Find Files Smaller Than a Specific Size The basic format to search for files … Read more

When you log into a Linux system, especially via SSH, you might notice a message displaying the time and date of your last login. This feature, while useful for tracking access and detecting unauthorized logins, may not be necessary for everyone. Some users prefer a cleaner terminal interface without distractions. In this guide, we’ll show … Read more

Ever wondered why Linux users love converting PDFs to text? It’s a common task. Whether you’re dealing with research papers or contracts, converting PDFs to plain text makes handling them a breeze. If you’re a Linux fan or just diving into its capabilities, mastering PDF conversion is a handy skill. Linux has a bunch of … Read more

Do you need an ultra fast way to create a large number of files in Linux? Perhaps, you are doing some load testing for an application and you need to create 1000 or even 1,000,000 files in the matter of seconds. Well, here is how to do it! There are two parts to creating these … Read more

This article will show you how to add a network printer on a Ubuntu 9.10 system. Let’s go ahead and get started… Navigate to System –> Administration –> Printing Then choose Server –> New –> Printer from the Printer configuration window The New Printer wizard will be displayed. Here you can add either local or … Read more

Linux is a highly efficient and flexible operating system, but there are times when processes can misbehave, slow down the system, or consume excessive resources. In such cases, it may be necessary to terminate one, multiple, or even all processes. This guide provides a detailed explanation of how to kill all processes in Linux using … Read more