Install VirtualBox on Ubuntu 20.04 (GUI, terminal, oracle repository)

By: Gunawan, Updated: December 19, 2025 virtualbox ubuntu20.04

Oracle VM VirtualBox or simply VirtualBox is a free and open-source for general purpose full virtualization x86 and AMD64 / Intel64 hardware developed by Oracle Corporation. It is designed to run virtual machines and available for Linux based OS such as Ubuntu.

The Most Used Linux Basic Commands

By: Gunawan, Updated: December 17, 2025 linux commands

Linux command is a case sensitive text interface to accomplish all administrative tasks to your computer system. All the commands are run in the terminal provided by the Linux system as user interactive and outputs the results of commands which are specified by the user itself.

How To Change Directory in Linux (Terminal, Command Line)

By: Gunawan, Updated: December 12, 2025 change directory linux

Changing Directory (or Folder) Path on linux based operating system basically can be executed via terminal interface using command line interface. In other words a specific command line can navigate you to another working directory in the computer system.

How To Remove Directory on Linux (Command Line)

By: Gunawan, Updated: December 10, 2025 remove directory

Remove Directory (or Delete) on linux computer system can be performed via terminal using command line. In most cases, software programs that are executed on the computer handle these operations, but the user of a computer can also modify directories if necessary.

How To Remove File on Linux (Command Line)

By: Gunawan, Updated: November 16, 2025 remove file

File on linux computer system can be created, moved, renamed, modified, grown, shrunk, and deleted. In most cases, software programs that are executed on the computer handle these operations, the user can also modify these files directly via terminal with command lines.

How To Rename File in Linux (Terminal, Command Line)

By: Gunawan, Updated: November 1, 2025 rename file linux

File in linux computer system can be renamed, created, copied, moved, modified, grown, shrunk, and deleted. In some cases, software programs that are executed on the computer handle these operations, the user can also modify these files directly via terminal using command line.

Page 2 of 212