nautyamtog(1)
read graphs in matrix format
SYNOPSIS
amtog
[,n#sgzhq/] [,o#/] [,infile /[,outfile/]]
DESCRIPTION

Read graphs in matrix format.
 n#

Set the initial graph order to # (no default).
This can be overridden in the input.
 g

Write the output in graph6 format (default).
 s

Write the output in sparse6 format.
 z

Write the output in digraph6 format.
 h

Write a header (according to g or s).
 w

Don't warn about loops (which are suppressed for g)
 q

Suppress auxiliary information.
 o#

Treat digit # as 1 and other digits as 0.

Input consists of a sequence of commands restricted to:
 n=#

set number of vertices (no default)
The = is optional.
 m

Matrix to follow
An 'm' is also assumed if a digit is encountered.
 M

Complement of matrix to follow (as m)
 t

Upper triangle of matrix to follow, row by row

excluding the diagonal.
 T

Complement of upper trangle to follow (as t)
 q

exit (optional)