side-bar: how do you know this? is the information about the file structure of linux available somewhere? I've only ever run into this type of thing circumstantially.
Personally, I know it like I know a lot of things: poking around one day, probably looking for something else in the /var directory ("is it /var/log, or /var/logs?"), and "'ello, wot's this?". Best I can recall, I've never had a practical reason to know this, or a lot of other things I know.
side-bar: how do you know this? is the information about the file structure of linux available somewhere? I've only ever run into this type of thing circumstantially.