task untar { File tar_file String docker String cluster_config String disk_size command <<< nt=$(nproc) tar -zxvf ${tar_file} >>> runtime { docker:docker cluster: cluster_config systemDisk: "cloud_ssd 40" dataDisk: "cloud_ssd " + disk_size + " /cromwell_root/" } output { Array[File] fastq_file = glob("*.fastq.gz") } }