An overview of GNU make rules: targets, prerequisites, special targets and more

An overview of GNU make automatic variables and helpers to make them easier to grasp

Details about the behind the scenes of man pages: groff, macros (mdoc & man) and more.

An example-driven overview of the jq command using NASA NeoWs API

Navigating directories have never been easier with z, this post describes how to use it and how it works

An overview of tig, a text-based interface for Git

An example-driven post featuring fzf, a flexible command-line fuzzy finder

Brief, example-driven overview of htop, the program to visualize and manage system processes

Brief, example-driven overview of iftop, the program to visualize packets in your network

Explaining the diff command line tool, one line at the time

Quick and dirty guide to scheduling and debugging jobs in macOS with launchd and utilities that interface with launchd.