xml - Get xmllint to output xpath results -separated, for attribute selector

Question

How can I get xmllint to output multiple results of xpath selector for attributes "per line"?

Take this example:

  <?xml version="1.0" encoding="ISO-8859-1"?>
  <config>
          <tagX key1="value1 " key2=" value2"/>
          <tagY key3="value3" key4=" value4 "/>
  </config>


  $ xmllint example.xml --xpath "/config/*/@*"

The result is:

   key1="value1 " key2=" value2" key3="value3" key4=" value4 "

What I'd like to get is:

   key1="value1 "
   key2=" value2"
   key3="value3"
   key4=" value4 "

Would I need to split after even-numbered quote marks, or is there any neater way to do this?

There's a related question, about the same subject except it's about picking out contents of <tag>value</tag>, and not <tag attribute="value" />

Answer 1

You can try:

$ xmllint --shell inputfile <<< 'cat /config/*/@*'

You might need to grep the output, though, so as to filter the undesired lines.