code: def get_cmd_output_now(self, exe, suggest_filename=None,
                             root_symlink=False, timeout=300, stderr=True,
                             chroot=True, runat=None, env=None,
                             binary=False, sizelimit=None, pred=None):
          
          if not self.test_predicate(cmd=True, pred=pred):
              self._log_info("skipped cmd output '%s' due to predicate (%s)" %
                             (exe, self.get_predicate(cmd=True, pred=pred)))
              return None
  
          return self._get_cmd_output_now(exe, timeout=timeout, stderr=stderr,
                                          chroot=chroot, runat=runat,
                                          env=env, binary=binary,
                                          sizelimit=sizelimit)
docs: Execute a command and save the output to a file for inclusion in the
          report.