If you define namespace alias (in your case "x"), you also have to
actually use it in the query:

xmlstarlet sel -N x=http://opensearch.org/searchsuggest2 -t -v
'count(/x:SearchSuggestion/x:Section/x:Item)' bullwinkle.xml

The command above works for me and returns "7".

And as far as I know, you have to use namespace aliases when working with XPath.

Petr Onderka
[[User:Svick]]

On Tue, Jan 10, 2012 at 00:09, Fred Zimmerman <wfz@nimblebooks.com> wrote:
> bitnami@ip-10-212-187-224:~/sfb-link/scripts$ xmlstarlet sel -N
> x=http://opensearch.org/searchsuggest2 -t -v
> "/SearchSuggestion/Section/Item" bullwinkle.xml
> bitnami@ip-10-212-187-224:~/sfb-link/scripts$
>
> that doesn't work (null response). not sure whether it's xpath or my lack of
> understanding of xmlstarlet.
>
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> On Mon, Jan 9, 2012 at 17:34, <b-jorsch@alum.northwestern.edu> wrote:
>>
>> On Mon, Jan 09, 2012 at 03:12:23PM -0500, Fred Zimmerman wrote:
>> > > count(/SearchSuggestion/Section/@Item)
>>
>> That's looking for the "Item" in <Section Item="...">, of which none
>> exist in the document. Lose the @ and it might work.
>>
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