title: XmlStarlet update value of first node
body: <p>In my xml-file I want to change the value of only the first node. When I execute </p>
  
  <p>{xml ed -u //<em>[local-name()='KnopenTakkenPositie']/</em>[local-name()='Koppositie']/*[local-name()='Kilometerlint'] -v "xxxxx" MTPS108_TC001_5output.xml}</p>
  
  <p>all node values (5) are replaced. </p>
  
  <p>Does anybody know how to do the trick? Thanks and greets, Frank</p>