.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.48.2. .TH NAUTY-CATG "1" "March 2021" "nauty 2.7.1" "Nauty Manual" .SH NAME nauty-catg \- concatenate files of graphs .SH SYNOPSIS .B catg [\fI\,-xv\/\fR] [\fI\,infile\/\fR]... .SH DESCRIPTION .IP Copy files to stdout with all but the first header removed. .TP \fB\-x\fR Don't write a header. In the absence of \fB\-x\fR, a header is written if there is one in the first input file. .TP \fB\-v\fR Summarize to stderr.