I'm trying to update the value of a field in a specific block but that value is in a wrapped attribute (not sure what the proper name should be), ie:
<target_tag name="my_tag" default="value_to_update"/>
rather than:
<target_tag name="my_tag">value_to_update</target_tag>
I've been searching how to this and it seems to be something like:
xmllint --shell my_file.xml << EOF
cd //target_tag[@name="my_tag"]/default
set new_value
save
EOF
but this would work if the XML was of the second kind. How can I access/update the wrapped attribute? I can't seem to find the answer...
You were close!
The cd shell command must refer to the @default attribute
xmllint --shell tmp.xml << EOF
cd //target_tag[@name="my_tag"]/@default
cat .
set new_value
save
bye
EOF
cat tmp.xml
Console output
/ > cd //target_tag[@name="my_tag"]/@default
default > cat .
-------
default="value_to_update"
default > set new_value
default > save
default > bye
<?xml version="1.0" encoding="UTF-8"?>
<root>
<target_tag name="my_tag" default="new_value"/>
</root>
xmllint version
xmllint --version
xmllint: using libxml version 20914