That was exactly what I was thinking of, though the rest of what I remember about config.sys revolves around battles with emm386. Ah, for the simplicity of the 286.

It's weird hos DOS perversity made it super-easy to pick up unix when Linux became available, but I've retained a loathing of unnecessarily short commands like 'cp' 'mv' and especially 'man', probably in proportion to the difficulty of guessing them.