off topic: combined output of concurrent processes

[Amadeus W.M.]

> Definitely yes. But again, that only matters if you had lots of curl
> commands each with its own >> file open. But your code had one >> open
> and lots of echoes (well, curls) using it.
> 
> Which is it? (Actually, both should work. But we need to know what is
> actually goging on.)

It's the latter, i.e. a single redirection for all curls. Redirection to 
a file was for examining the output only, cause it did cross my mind that 
the output might be messed up (although it didn't seem to, in practice). 
But as I mentioned in yet another post I'm piping the combined curls into 
a parser. Not separately.