in reply to Re^2: cartesian product preserving order
in thread cartesian product preserving order

It's documented indirectly. perldoc -f glob says that glob expansion works as in csh. Try this in csh or bash: 

$ echo {a,b,c}{1,2,3}
a1 a2 a3 b1 b2 b3 c1 c2 c3
$

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Re^4: cartesian product preserving order
by wazoox (Prior) on Jun 09, 2005 at 15:58 UTC
    So you're also a shell demon? congratulations :)
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