[TUHS] 'Command subcommand ...' history

Lots of tools now seem to use this strategy: there's some kind of wrapper which has its own set of commands (which in turn might have further subcommands). So for instance git remote add ... is a two layer thing. Without getting into an argument about whether that's a reasonable or ideologically-correct approach, I was wondering what the early examples of this kind of wrapper-command approach were. I think the first time I noticed it was CVS, which made you say `cvs co ...` where RCS & SCCS had a bunch of individual commands (actually: did SCCS?). But I think it's possible to argue that ifconfig was an earlier example of the same thing. I was thinking about dd as well, but I don't think that's the same: they're really options not commands I think. Relatedly, does this style originate on some other OS? --tim (I realise that in the case of many of these things, particularly git, the wrapper is just dispatching to other tools that do the werk: it's the command style I'm interested in not how it's implemented.)