zcat RpoB_1.end1.fastq.gz | wc -l > RpoB_1.fastq.lines
zcat RpoB_2.end1.fastq.gz | wc -l > RpoB_2.fastq.lines
zcat RpoD_1.end1.fastq.gz | wc -l > RpoD_1.fastq.lines
zcat RpoD_2.end1.fastq.gz | wc -l > RpoD_2.fastq.lines