Package bliss

Compute automorphism groups and canonical labelings of graphs

http://www.tcs.hut.fi/Software/bliss/

Bliss is an open source tool for computing automorphism groups and
canonical forms of graphs. It has both a command line user interface as
well as C++ and C programming language APIs.

General Commands (Section 1)
bliss
Bliss is an open source tool for computing automorphism groups and canonical forms of graphs. The graphs are specified in DIMACS format.