Hi Neil! :-)

 NH> Anyway, I saw at the bottom of the man page:  see also cancel()
 NH> I tried "cancel -a" and it worked like a charm.
Ah, good.

 NH> Apparently this has something to do with something called CUPS.
 NH> Do you have any idea what that is?
CUPS stands for "Common Unix Printing System". It's a framework
for driving printers and spooling print jobs that has been adopted by all
the major Linux distribution over the past few years.

For the old lpr (line printer) and LPRng (lpr next generation) spoolers,
the lprm command would've worked - after finding out the job id by using
lpq.

Ciao
Pascal

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