.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.49.3.
.TH NAUTY-UNDERLYINGG "1" "April 2024" "nauty 2.8.8" "Nauty Manual"
.SH NAME
nauty-underlyingg \- take the underlying undirected graphs of a file of graphs
.SH SYNOPSIS
.B underlyingg
[\fI\,-q\/\fR] [\fI\,infile \/\fR[\fI\,outfile\/\fR]]
.SH DESCRIPTION
.IP
Take the underlying undirected graphs of a file of graphs.
.IP
The output file has no header.
Undirected graphs are passed through without change, while
Underlying graphs of digraphs are written in sparse6 format.
.TP
\fB\-q\fR
Suppress auxiliary information.