@command<EOL><INDENT>def do_graphviz(self, args, arguments):<DEDENT>
filename = arguments['<STR_LIT>']<EOL>if platform.system() == '<STR_LIT>':<EOL><INDENT>if os.path.isfile(filename):<EOL><INDENT>os.system("<STR_LIT>" + filename)<EOL><DEDENT><DEDENT>
::

    Usage:
           graphviz FILENAME

    Export the data in cvs format to a file. Former cvs command

    Arguments:
        FILENAME   The filename