barcat -ct-7 input/duplicates.txt
3 thrice ---------<----+--=------>------
2 twice  ---------<----+--=---
1 once   ---------<
1 most   ---------<
       -----            +++++++++++++++++
6 most ----<--+---=>--------------------
1      ----<-
3 most      ---<----+=>---
2  indented ---<----+
1 different ---<-