It used to be simpler to teach Unix
Can I hijack this to ask how best to 'learn Unix' (or Linux specifically, i confess I'm not actually sure on where the line is, my only non-Linux Unix experience is with Mac)?<p>I'd like to know more about namespaces, file organisation - what 'should' be where - processes and syscalls, etc.<p>(To be honest man pages just don't suit me for deliberate learning, I treat them the same as --help outputs, whereas for an answer to this question, for example, I'd find a textbook more helpful.)