I've used command lines at the prompt, but I never, ever trust someone who makes a big show of typing them from memory. For every time they get it right, they screw something up in their pointless ...
Man pages have been the primary source for UN*x documentation for a long time. Whenever I create a script that's going to be around for a while, I create documentation in the form of a section 1 man ...
It is. I've converted a few machines here in just the last few months, even one where the HD was so shot full of holes only the recovery partition made it onto the replacement SSD and I wound up ...