How to reset the root password on RHEL 9
Resetting the root password of a RHEL virtual machine (VM) or physical server is a frequently encountered challenge. Fortunately, resetting the root password for a RHEL 9 machine is a straightforward process.
How to Use AWK Command in Linux: A Comprehensive Guide
AWK is a programming language in Unix-based systems that is used to process and manipulate text. We can perform operations such as searching, filtering, formatting, etc on an input file…
Terminal Shortcuts Every Linux and macOS User Should Know
In this blog post, we will discuss the top 10 most useful Linux terminal shortcuts that can help you save time and increase productivity.
How to fix apt 404 Not Found error on Debian/Ubuntu
You may encounter a "404 Not Found" error when you want to install a package in a Debian-based host. The reason is quite obvious, the URLs for downloading the packages…
Regular Expressions in Linux
Regular Expression is a set of characters that defines a search pattern in a text. Regular Expression is used in UNIX text processing utilities like AWK, sed, grep, and more.…
How to use grep command in Linux/macOS
Global Regular Expression Print (grep) is a UNIX utility that searches text files or standard input for lines that match a string (Regular Expression) and prints the result to standard…
How to reset forgotten root password on CentOS 7 / CentOS 8
In this short step by step tutorial, you will learn how to reset a forgotten root password for CentOS / RHEL 7 and 8 nodes.