process {

    publishDir = { "${params.outdir}/${task.process.tokenize(':')[-1].tokenize('_')[0].toLowerCase()}" }

    withName: CAT_UNZIPPED_ZIPPED {
        ext.prefix = 'cat.txt.gz'
    }

    withName: CAT_ZIPPED_UNZIPPED {
        ext.prefix = 'cat.txt'
    }
}