title: split up (with specified delimiter) a selected column
body: <p>I have a tab-delimited file and want to modify it. The last column is pipe-delimited and I'd like to split that column up (from pipe to tab) while avoiding splitting up other columns with pipes.</p>
  
  <p>This works to convert pipe to tab but I'm unable to have it do the splitting only on a selected column 13. Is there a way to have this work just on the last column without having to specify it?</p>
  
  <pre><code>awk -F'|' '$13=$13' OFS="\t" inputfile.tsv &gt; split.tsv
  </code></pre>