nauty-linegraphg man page
nauty-linegraphg — compute the linegraphs of a file of graphs
linegraphg [-t] [-q] [infile [outfile]]
Take the linegraphs of a file of graphs.
Input graphs with no edges produce only a warning message.
The output file has a header if and only if the input file does.
make the total graph
Suppress auxiliary information.