barcat -c input/duplicolumns.txt
-2 prefix 1 1 ------------+--=-----------
-1 random 2 2 ------------+-
-1 prefix 3 1 ------------+-
-1 text 1 2 ------------+-
-1 prefix 2 1 ------------+-
-2 prefix 3 2 ------------+--=-----------
-1 prefix 2 2 ------------+-
-1 prefix 3 0 ------------+-
-1 prefix 1 2 ------------+-
-1 prefix 2 ------------+-
+2 prefix 1 1 -------------+-=-----------
+1 random 2 2 -------------+
+1 prefix 3 1 -------------+
+1 text 1 2 -------------+
+1 prefix 2 1 -------------+
+2 prefix 3 2 -------------+-=-----------
+1 prefix 2 2 -------------+
+1 prefix 3 0 -------------+
+1 prefix 1 2 -------------+
+1 prefix 2 -------------+