process {

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

    withName: SAMTOOLS_COLLATE {
        ext.prefix = { "${meta.id}.collate" }
    }

    withName: SAMTOOLS_FIXMATE {
        ext.prefix = { "${meta.id}.fixmate" }
    }

    withName: SAMTOOLS_SORT {
        ext.prefix = { "${meta.id}.sorted" }
    }

    withName: SAMTOOLS_MARKDUP {
        ext.prefix = { "${meta.id}.markdup" }
    }    
    
}