ref: ba4a1c07f1bc7622f8a3dcd4f2d383f4ec70fc1c dir: /test/p.50/
BEGIN { FS = "\t" } { pop[$4 ":" $1] += $3 } END { for (cc in pop) print cc ":" pop[cc] | "sort -t: -k 1,1 -k 3nr" }