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

By: Gunawan, Updated: February 27, 2026 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.

How To Create Directory in Linux (Command Line)

By: Gunawan, Updated: February 22, 2026 create directory

Directory (or Folder) on linux based operating system basically can be created, moved, modified, grown, shrunk, and deleted. In most cases, software programs that are executed on the computer handle these operations, but the user of a computer can also manipulate files if necessary.

How To Remove File on Linux (Command Line)

By: Gunawan, Updated: February 19, 2026 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 Remove Directory on Linux (Command Line)

By: Gunawan, Updated: February 19, 2026 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 Create File on Linux (Command Line)

By: Gunawan, Updated: February 15, 2026 create 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.

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