Ubuntu

Ubuntu can be booted into one of several target levels. The default target to which the system is configured to boot will, in turn, dictate which systemd units are started. The targets that relate specifically to system startup and shutdown can be summarized as follows: poweroff.target – This is the target in which the system […]

Very fortunately, there are utilities that can open, display, and enable you to change characters or binary bytes inside any kind of file. These are called binary editors or hexadecimal editors, and the best of them in my experience (at least for the Linux world) is the Bless Hex Editor. It was designed to operate […]

Neovim can be used as a drop-in replacement for Vim. Neovim is a fork of Vim, that branched out into its own thing in 2014. Neovim aims to address a few core issues about Vim: Working with a 30-year-old code base while maintaining backward compatibility is hard. It’s very difficult to write certain kinds of […]

There are many different approaches to audio players under Linux. Some players focus on minimalism, others focus on features, and some aim to provide similar functionality to a media player on another platform. Rhythmbox falls into the latter category, as it was created to provide an iTunes-like interface for audio under Linux. To play those […]

Many firewall solutions are available for Linux/Unix-based operating systems, such as Raspbian OS in the case of Raspberry Pi. These firewall solutions have IP tables underneath to filter packets coming from different sources and allow only the legitimate ones to enter the system. IP tables are installed in Raspberry Pi by default but are not […]

Uncomplicated firewall (UFW) provides easy-to-use interface for people unfamiliar with firewall concepts. It provides a framework for managing netfilter as well as the command-line interface to manipulate the firewall. With its small command set and plain English parameters, UFW makes it quick and easy to understand and set up firewall rules. At the same time, […]

The Advanced Package Tool (APT) is a command-line tool used to interact easily with the dpkg packaging system. APT is the ideal method used for managing software within Debian-based Linux distributions, such as Ubuntu. It manages dependencies effectively, maintains large configuration files, and properly handles upgrades and downgrades to ensure system stability. On its own, […]

The dpkg utility is a low-level system tool to extract, analyze, unpack, install, and remove packages with a .deb extension. The scripts read by dpkg inside each .deb file are important as they give information to the program regarding the packages’ installation, removal, and configuration. The dpkg utility resides at the base of the package […]

Developers can install Ruby across all the platforms using a tool called Rbenv; I personally use this. Rbenv will let you jump across Ruby versions easily and install and test out new Ruby distributions with the help of Rbenv’s plugin, ruby-build. rbenv works by intercepting Ruby commands using shim executables injected into your PATH. It […]

aria2 is a lightweight multi-protocol & multi-source command-line download utility. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink. aria2 can be manipulated via built-in JSON-RPC and XML-RPC interfaces. You can uninstall or remove an installed aria2 package itself from Ubuntu through the terminal using the below command: $ sudo apt-get remove aria2 Uninstall aria2 including […]