Linux Basics

This guide explains how to solve error rpmdb damaged header by rebuilding the RPM database in Fedora, RHEL, CentOS, AlmaLinux and Rocky Linux.

In this guide, we will look at what causes broken sudo, and how to restore sudo privileges to a user from recovery mode in Ubuntu and its derivatives.

In this comprehensive tutorial, we are going to learn to bulk rename multiple files at once in Linux in 8 different ways.

This guide explains how to find a package version in some popular Linux distributions such as Alpine Linux, Arch Linux and its derivatives, Debian and its derivatives, RHEL and its derivatives.

This brief guide explains two different ways to install and add fonts in Fedora Linux distribution.

Zenity is a rewrite of gdialog, the GNOME port of dialog which allows you to create GUI dialog boxes in Bash scripts in Linux, BSD and Windows.

This guide explains what is Bash case statement and how to use case statement in Bash shell scripts with examples.

In this guide, we will learn how to work with conditional statements in bash, how to use file test, integer, and string operators. And finally, we will discuss how to write compact conditional statements using logical AND and logical OR operators.

String manipulation is one of the fundamental concepts of bash scripting. This guide explains how to create and manipulate strings in bash.

This detailed tutorial addresses all the possible ways to find available network interfaces on Linux and Unix operating systems.