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log.info "fastq files : ${params.fastq}"
Channel
.fromPath( params.fastq )
.ifEmpty { error "Cannot find any fastq files matching: ${params.fastq}" }
.set { fastq_files }
process trimming {
tag "$reads.baseName"
input:
file reads from fastq_files
output:
file "*_trim.fastq.gz" into fastq_files_cut
script:
"""
cutadapt -q 20,20 \
-o ${reads.baseName}_trim.fastq.gz \
${reads} > ${reads.baseName}_report.txt
"""
}