The Linux command line is a text-based computer interface. It's also known as the Shell, Terminal, Console, CLI, or Prompt, just to name a few. Any graphical user interface (GUI) is nothing more than a graphical representation of command-line applications.

Linux is a multi-user operating system, which means that several users can interact the system at the same time. As a system administrator, you are in charge of managing the system's users and groups, which includes adding and deleting users and assigning them to various groups.

Working under any Linux Server involves lots and lots of files configuration. Some use Vi, Vim, or Emacs, yet powerful but somehow tedious to learn. For those who need a more simple and versatile text editor, there is nano. GNU nano is a small and friendly text editor. Besides basic

In some situations, you might want to empty an existing file to a zero-length. In another word, removing the file contents without deleting the file. Is that even possible?

v2.wttr.in is a console-oriented weather forecast service that supports various information representation methods like terminal-oriented ANSI-sequences for

The hosts file is a local file or local DNS system that contains a static table lookup for hostnames and IP addresses. It is used to map domain names to IP addresses and can also be used as an alternative to DNS. It is available in all operating systems, including Windows, Linux, and macOS.

Although we are accustomed to using names (i.e, www.snubmonkey.com) when surfing the Internet, the Internet is pretty much based on numbers known as IP addresses.