overriding chroot
        :type runat: ``str``

        :param env:                 Environment vars to set for the cmd
        :type env: ``dict``

        :param binary:              Is the output in binary?
        :type binary: ``bool``

        :param pred:                A predicate to gate execution of the `cmd`
        :type pred: ``SoSPredicate``

        :param foreground:          Run the `cmd` in the foreground with a TTY
        :type foreground: ``bool``

        :param container:           Execute this command in a container with
                                    this name
        :type container: ``str``

        :param quotecmd:            Whether the cmd should be quoted.
        :type quotecmd: ``bool``

        :returns:                   Command exit status and output
        :rtype: ``dict``
        Nr