This one doesn't includes GNU, but it is required for building it. I like the idea that knowing GNU/Linux like this allows for some makeshift tools to salvage o

This one doesn't includes GNU, but it is required for building it. I like the idea that knowing GNU/Linux like this allows for some makeshift tools to salvage or recover from situations that would be lost without it. Needs a server or router and all you have is an old computer with some NIC's? All you have is a pendrive and needs to recover some files from an unbootable machine? Do not have msword but can use gzip and grep and wants to extract text or images from a docx? Got an old computer without harddisk but working floppy drive and needs linux running on it? Need to send an SOS AM signal and all you have in an old CRT? A modern linux distro with a few dev packages and system tools is like a digital swiss army knife on these situations. Some of these scenarios are stretching the reality, but some are not. These skills are the modern IT equivalent to MacGyverisms.