Dust is a command line tool for viewing and analyzying disk space usage. This tool can be used as an alternative to the du command. This tutorial explains how to...

Each different model of Raspberry Pi has a unique revision code. It is hexadecimal number which can be used to identify Raspberry Pi model and manufacturer. For example, Raspberry Pi...

The bottom is a tool that allows to monitor system resources and running processes via command line. This tool shows CPU, RAM, disk, network usage, and more. This tutorial shows...

The yq is a command line based YAML processor which can be used to manipulate and extract values from YAML data. This tutorial demonstrates how to install yq on Raspberry...

Dasel is a command line tool to select and modify data being presented in different formats. This tool supports JSON, TOML, YAML, XML and CSV data formats. Dasel can convert...

The duf is a tool for displaying disk space usage of the system via command line. The duf can be used as an alternative to the df command. The duf...

Composer is a dependency management tool for PHP which enables to specify libraries on which project depends on. Composer manages libraries installation and update per-project (the default) or globally. This...

Raspberry Pi has few built-in LEDs such as PWR and ACT. It is a great device indicator but, blinking LEDs at night can be an annoyance. Also, LEDs consumes a...

The hexyl is a hex viewer via command line. It uses colors to distinguish between categories of bytes (printable ASCII characters, whitespace characters, NULL bytes, and other). This tutorial shows...

Lynis is a command line tool that allows to perform security audit, vulnerability detection, system hardening, etc. It scans the system to find configuration mistakes, vulnerable packages, insecure services, wrong...