Path toString then split the string and convert to the path again

[zillurbmb51]

Hi, I have a process that output multiple files. Such as:
[chr1, /path/to/chr1_chunk1.csv.bed, /path/to/chr1_chunk1.csv.bim, /path/to/chr1_chunk1.csv.fam, /path/to/chr1_chunk1.csv.log] and so on...

I want to split the path such as I get:
[chr1, /path/to/chr1_chunk1]

Using the following command I can get such output:
out_ch_from_previous_process.map{chr,bfiles -> tuple(chr,bfiles[0].toString().split('\\.')[0])}.set{in_for_next_process}

In the next process:

process next_pros1 {
input:
tuple val(chr),path(bfiles) from in_for_next_process
output:
tuple ("${chr}"),path("${chr}*") into in_for_following
script:
"""
plink --bfile ${bfiles} --maf 0.05 --make-bed --out ${bfiles}_maf
"""
}

It gives me error:
There is no such file chr1_chunk1.csv.fam
Did I explain my situation correctly? How could I get it right?

[complexgenome]

@zillurbmb51 Hi,
were you able to find solution to it?

[mribeirodantas]

Are you using DSL1? If you're using DSL2, please open a new issue explaining exactly your situation and I'll try to help you 😉