This quick tutorial will show you how to fix ‘sudo: unable to resolve host hostname’ error in Ubuntu or any other Linux distribution.
In this tutorial you’ll learn how to compare strings in bash shell scripts.You’ll also learn to check if a string is empty or null.
Learn to update a Kali Linux system in one single command. Yes, it’s that easy and straight forward.
This quick tutorial shows how to check the running shell, available shell in the system and how to change the default shell in Linux.
You may want to know who logged on your system and from where. You should also see bad login attempts on your system. Learn how to see login history in Linux.
This quick tutorial shows you how to display calendar in Linux with cal command and some common examples of this command.