~/annex/dataset/swh-graph-2019-01-28/edges $ cat *.csv.count | paste -d+ -s | bc
164_513_703_039  # 160 B
~/annex/dataset/swh-graph-2019-01-28/edges $ cat *.nodes.count | paste -d+ -s | bc
17_537_088_222   #  17 B