#HOW-TOs

Mastering Text Manipulation With the Sed Command

The Linux command line interface provides a wealth of tools for text processing, and one of the most powerful among them is the sed command. Sed, an abbreviation for Stream EDitor, is a versatile tool that allows for complex manipulation of text files and streams​​.

The Power of the Select Command to Automate Tasks in Bash

The select command in Linux is a versatile tool primarily used for menu creation in bash scripts. The command retrieves data from a specified list, which can be an array or other data source, and generates a menu from this data. Depending on the complexity of your task, you can create various types of menus such as a menu based on directory list or even a menu derived from file content.

Mastering Division of Variables in Bash

One of the common tasks you'll encounter when scripting in Bash is performing arithmetic operations on variables, particularly division. This process might seem straightforward, but it requires careful attention due to the lack of floating-point support in Bash by default. In this article, we will dive into several methods for dividing variables in Bash, and you'll discover how to handle the lack of floating-point division in Bash.

How to Search and Find Files for Text Strings in Linux

Searching for specific text strings in files is a common task in Linux. Whether you need to locate a file based on its content or search for a specific pattern within multiple files, Linux provides powerful command-line tools to assist you. In this guide, we will explore different approaches to searching and finding files for text strings in Linux, including the usage of the grep and find commands.

Mastering the Split Command in Linux: Effective File Splitting Techniques

Introduction In the world of Linux, the split command is a powerful tool used to split or break large files into smaller pieces. This command comes in handy when dealing with large log and archive files that are difficult to handle as a whole. With the split command, you can split files based on the number of lines or the file size, customize the output file names, and more.

Harness the Power of the Command Line: Searching Files and Google from Linux

Introduction The command line is a powerful tool for Linux users, offering a range of capabilities beyond traditional graphical interfaces. In this article, we will explore two essential command line functionalities: searching for files and performing Google searches. We will delve into the Linux find command for file search and introduce Googler, a handy command-line tool for searching Google. Let's dive in.

Troubleshooting the "Temporary Failure in Name Resolution" Error in Linux

Introduction Linux users may encounter the "Temporary failure in name resolution" error while trying to access websites or execute networking commands. This error indicates that the system is unable to translate a domain name into its corresponding IP address. Several factors can contribute to this error, including network connectivity issues, incorrect configuration of the resolv.conf file, and firewall restrictions. In this guide, we will explore the common causes of this error and provide solutions to help you resolve the issue.

Installing and Using Yarn on Ubuntu

Yarn is a powerful JavaScript package manager that is compatible with npm and helps automate the process of installing, updating, configuring, and removing npm packages. Yarn provides speed and reliability by caching downloaded packages and parallelizing operations. In this tutorial, we will cover how to install both the latest version and classic version of Yarn on Ubuntu, along with an overview of basic Yarn commands and options.

The Art of Restarting Debian

As a Debian user, you may find yourself needing to restart your system from time to time. Whether it's for implementing new configurations, recovering from temporary glitches, or installing updates that require a reboot, restarting your system is an essential skill to have. While Debian provides a graphical user interface (GUI) option for rebooting, many users prefer the precision and convenience of the command line. In this article, we'll explore a comprehensive set of commands you can use to restart your Debian system from the command line.

How To Master the RPM Command

Introduction As a Linux user, you've likely encountered RPM (Red Hat Package Manager), a powerful package management system used by various Linux distributions including Red Hat, CentOS, Fedora, OpenSUSE, and more. RPM is known for its simplicity, ease of use, and enhanced security features. In this guide, we'll explore the RPM command and its practical use cases, from installing and upgrading packages to querying and verifying them. Let's get started!

The One-Time Task Scheduling Guide To Master the “at” Command

When it comes to scheduling tasks in a Linux environment, system administrators and developers often use the cron command for recurring tasks. However, there is another powerful tool for scheduling one-time jobs, known as the at command. This article will provide an in-depth exploration of the at command, including its syntax, usage examples, and best practices.

Mastering the journalctl Command: A Comprehensive Guide

System logs are a vital resource for administrators and developers looking to monitor system performance, troubleshoot issues, and understand the events taking place within the system. On this article, we learn about how on Linux systems, the journalctl command provides an effective way to access and manage these logs.