code: def add_var_condor_cmd(self, command):
      
      if command not in self.__var_cmds:
          self.__var_cmds.append(command)
          macro = self.__bad_macro_chars.sub( r'', command )
          self.add_condor_cmd(command, '$(macro' + macro + ')')
docs: Add a condor command to the submit file that allows variable (macro)
      arguments to be passes to the executable.