1 2 3 4 5 6 7 8 9 10 11 12 13
#command cdx uniq -k 1 --agg-post ,expr,x,1,x*c2 #stdin aaa 1 aaa 2 aaa 3 aaa 4 bbb 2 bbb 4 bbb 6 bbb 8 #stdout aaa 1 24 bbb 2 384