SAXON
a file.xql
doc("w.xml")/xml_api_reply/weather/current_conditions/temp_f/@data/string(.)
run command
java net.sf.saxon.Query -s:file.xml file.xql >output.xml
a file.xql
doc("w.xml")/xml_api_reply/weather/current_conditions/temp_f/@data/string(.)
run command
java net.sf.saxon.Query -s:file.xml file.xql >output.xml