How to combine the below code together. 
find . -type f -name "*.xml" -print -exec grep -i '<book></book>' {} \
+;
find . -type f -name ".xml" -print -exec grep -i "<name=>*.*Sydney*.*"
+ {} \;

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How to list the XML files, which has the line 
<book></book> and <name> which has the word "Sydney"

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In reply to find the xml files by Anonymous Monk

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