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...

The cpufetch is a command line tool which shows CPU information such as processor name, microarchitecture, number of cores, etc. This tool is written in C programming language and supports...