Nextflow workflow with env output

nextflow_workflow_with_env_output.nf

process countStuff{
    input: path(input_file)
    output:
    env('lines'), emit: lines
    env('chars'), emit: chars
    env('words'), emit: words

    script:
    """
    lines=\$(wc -l <${input_file})
    chars=\$(wc -c <${input_file})
    words=\$(wc -w <${input_file})
    """
}



workflow {
    countStuff(params.input)
    countStuff.out.lines.view { result -> println "Number of rows: $result" }
    countStuff.out.chars.view { result -> println "Number of chars: $result" }
    countStuff.out.words.view { result -> println "Number of words: $result" }
}