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> echo - 2 - - - 6|perl -lane 'print $F..$F[-1]'
> echo - 2 - - - 6|perl -lane 'print @F[1..$#F]'
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
Results (382 votes),