graphviz is a set of graph drawing tools for Unix including a web service interface (webdot).
See "helpme setup" for
information on finding out what versions are available or
what to do if the
setup statement does not
Run the programSyntax for running gpr -- graph stream editor
gpr [-icV?] [ -o outfile ] [ -a args ] [ 'prog' | -f
progfile ] [ files ]