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