The reboot command is used to reboot or restart the system in Linux. Whenever you make significant updates to the Linux system or any network configuration changes, you may need to restart your system to make these changes effective. These can be software or hardware updates that are being carried by the server.

The vi editor is the default editor of the UNIX operating system in which you can create a new file or edit the existing one. Also, you can read files through this editor. It is a classic text editor and available across all the Linux Distributions. It included by default on most of the Linux distributions out there and is very easy to use.

Booting refers to the process of starting up your computer and can be initialized by pressing a hardware button or through a software command. You see, when the CPU is turned on, it doesn't have access to any software in its main memory. The boot process loads the necessary software, so you're computer can launch the operating system.

In Linux, environment variables are dynamic named-values that function as a placeholder for stored information in the system, which is used by command-line applications. Just like any other variable, it consists of two parts - a name and an associated value.

Linux is an excellent choice for those looking for a multitasking and multi-user operating system. Multiple processes can run simultaneously and independently from each other and is exceptionally stable. Whenever we run a program, a new process of that program's instance will be created and perform the given tasks without disturbing other running programs.

On several occasions, you may need to run a command or utility repeatedly after some time interval. We can use specific cron jobs with the help of bash scripting or using other programming languages. However, Linux has a built-in watch command that is used to run other commands on a regular interval, and then it displays the output in the terminal. The watch utility is pre-installed on nearly all Linux distributions.

Linux is a multi-user operating system that allows you to set up multiple user accounts and user groups to access the same computer. As you can imagine, this brings up some security concerns. Luckily, Linux comes with powerful file permission settings and options that prevent users from accessing each other's confidential and sensitive stuff.

While working with disks and operating systems after a certain level, there are several terms that we come across that we vaguely know about, and to many of us, they are not clearly understood. Well, in this article, we aim to cover everything about the Linux File Systems and those different terms related to it to leave no gaps.