Problem injecting Nextflow variable into Rscript code in a process

[nbargues]

Hello, I have a problem injecting nextflow variable through a R script into a process script block.

And then the module :

process v2 {
    publishDir "${params.qc_outdir}", mode: "copy"
    
    input:
    path stat
    
    output:
    path "jjj.xlsx", emit: map
    
    script:
    """
    export stat=!{stat}

    Rscript -e '
    library(writexl)

    stat <- Sys.getenv("stat")

  
    lsamplenames <-  dir(stat, pattern=\"*.out\"))

    '
    """
}

I think that I don't have the proper method to inject / define the variable "qc_stat" . Can you point me what I do wrong ? Because my final excel print correctly but is empty. Thanks

[nbargues]

I have found the right shebang. It's the syntax for R code : "${stat}"