title: how to produce multiple readlength.tsv at once from multiple fastq files?
body: <p>ı have 16 fastq files under the different directories to produce <code>readlength.tsv</code> seperately and ı have some script to produce <code>readlength.tsv</code> .this is the script that ı should use to produce <code>readlength.tsv</code></p>
  <pre><code>zcat ~/proje/project/name/fıle_fastq | paste - - - - | cut -f1,2 | while read readID sequ;
  do
      len=`echo $sequ | wc -m`
      echo -e &quot;$readID\t$len&quot;
  done &gt; ~/project/name/fıle1_readlength.tsv
  </code></pre>
  <p>one by one ı can produce this readlength but it will take long time .I want to produce readlength at once thats why I created list that involved these fastq fıles but ı couldnt produce any loop to produce <code>readlength.tsv</code> at once from 16 fastq files.</p>
  <p>ı would appreaciate ıf you can help me</p>