Hi,
the correct syntax in your case should be like this:
iectl iem job batch-create --appid <appID> --files "<path-to-file>" --infoMap '{"configs":[{"configId":"<config-id>","fileId":"<filename>"}],"devices":[<device-id>]}' --operation installApplication
More info:
https://docs.eu1.edge.siemens.cloud/apis_and_references/iectl/commands/version_2.0.0/IEM/iectl_iem_job_batch-create.html