In this guide, you will learn How to set grub2 password in RHEL/CentOS 7/8. What is GRUB and What is its use? GRUB stands for Grand Unified Bootloader. In simple language, we can say that GRUB is a boot loader. When you power ON the system, you get a list where the system gives you …
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Today you will learn How to use rm command in Linux. rm stands for Remove. As you can understand by the name itself, you can use the rm command to remove Files or Directories. By default, rm does not remove directories. Therefore, to remove the directories, you have to use -r or -R option which …
As a Linux Administrator, You must know the importance of root User. Without root User, you cannot do any kind of configuration in Linux such as creating a partition, Configuring a service, and so on. That’s why root is also called as Superuser. Just think about what will happen if you forget the root user’s …
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Today you will learn about a command which will help you to get information related to hardware and operating system. In Linux, there are many commands, with the help of which we can extract information about hardware and software. Here I have listed some of them: uname lshw lscpu lsblk lsusb dmidecode etc.. In this …
Today you will learn how to delete (Remove) a empty directory in Linux operating system using rmdir command. To learn How to create a directory in Linux, see our guide: mkdir Command : How to Create a Directory in Linux Let’s get started. The rmdir command is derived from an ordinary word and that is …
Today you will learn how to compress files in Linux using bzip2 command. What is File Compression? File compression is a method by which we can save disk space by reducing the size of available data. A compressed file is a collection in which one or more files are stored. We have several ways in …
Today you will learn how to compress files in Linux using gzip command. What is File Compression? File compression is a method by which we can save disk space by reducing the size of available data. A compressed file is a collection in which one or more files are stored. Why do we need to …
Today we will learn how to create a directory in Linux operating system using mkdir command. Let’s get started. The mkdir command is derived from an ordinary word and that is Make Directory. What we call a folder in Microsoft Windows is called a directory in Linux. Features of mkdir Command Make new Directories Create Parent Directories …
Today in this guide you will learn how to use wc command in Linux. wc stands for Word Count. As you can understand from the name itself, wc command is used to count the available words in the contents of a file. Not only this, wc has more features which we are going to discuss …
Do you know How to shutdown your Linux Operating System securely? It’s straightforward. In this guide, you will learn How to Shutdown Linux OS securely using the shutdown command. Before starting the topic, I would like to explain to you the different shutdown process. Types of Shutdown There are two types of shutdown: Hard Shutdown: …