Thanks for posting this. For reference, paste is a standard UNIX utility, whose purpose is to do all sorts of useful things not limited to 2-tuples: $ seq 1

Thanks for posting this. For reference, paste is a standard UNIX utility, whose purpose is to do all sorts of useful things not limited to 2-tuples: $ seq 1 9 | paste - - - 1 2 3 4 5 6 7 8 9