.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.48.2.
.TH NAUTY-COPYG "1" "March 2021" "nauty 2.7.1" "Nauty Manual"
.SH NAME
nauty-copyg \- convert format and select subset
.SH SYNOPSIS
.B copyg
[\fI\,-gszfp#:#qhx\/\fR] [\fI\,infile \/\fR[\fI\,outfile\/\fR]]
.SH DESCRIPTION
.IP
Copy a file of graphs with possible format conversion.
.TP
\fB\-g\fR
Use graph6 format for output
.TP
\fB\-s\fR
Use sparse6 format for output
.TP
\fB\-z\fR
Use digraph6 format for output
.TP
\fB\-i\fR
Use incremental sparse6 format for output
.IP
In the absence of \fB\-g\fR, \fB\-s\fR, \fB\-z\fR or \fB\-i\fR, the format
depends on the header or, if none, the first input line.
As an exception, digraphs are always written in digraph6.
.HP
\fB\-p\fR# \fB\-p\fR#:#
.IP
Specify range of input lines (first is 1)
This can fail if the input has incremental lines.
.TP
\fB\-f\fR
With \fB\-p\fR, assume input lines of fixed length
.IP
(ignored if header or first line has sparse6 format).
.TP
\fB\-I\fR#
Have at most this number of incremental steps
.TP
in a row.
Implies \fB\-i\fR.
.TP
\fB\-h\fR
Write a header.
.TP
\fB\-x\fR
Don't write a header.
.IP
In the absence of \fB\-h\fR and \fB\-x\fR, a header is written if
there is one in the input.
.TP
\fB\-q\fR
Suppress auxiliary output.