XMLSTARLET with Namespace Indicators Won't Get Parameter Value

[gilbert mark stewart]

Here's the expression I've tried to use:
xmlstarlet sel -t -v "/bulkCCDataFile[@xmlns:un='utranNrm.xsd']/configData[@dnPrefix='Undefined']/xn:SubNetwork[@id='ALPHA']/xn:SubNetwork[@id='Burbank']/xn:attributes/xn:userDataType/"

And here is the part of the XML file I'm trying to read from:

    1 <?xml version="2.0" encoding="UTF-8"?>
    2 <bulkCCDataFile xmlns:un="Nrm.xsd"
    3     xmlns:es="EricssonSpecificAttributes.15.25.xsd"
    4     xmlns:xn="Nrm.xsd" xmlns:gn="Nrm.xsd" xmlns="configData.xsd">
    5     <fileHeader fileFormatVersion="32.615 V4.5" vendorName="Ericsson"/>
    6     <configData dnPrefix="Undefined">
    7         <xn:SubNetwork id="ALPHA">
    8             <xn:SubNetwork id="Burbank">
    9                 <xn:attributes>   
    10                     <xn:userDataType>MY_SERVERS</xn:userDataType>

I've looked at many example, but none seem to address this particular situation for getting userDataType value, "MY_SERVERS". This LOOKS like what XPATH is supposed to be.

What am I missing?

[Noam Postavsky]

Have you read chapter 5 in user guide? http://xmlstar.sourceforge.net/doc/UG/ch05.html