I don't have xpath in my version of xmllint, using libxml2-2.7.6-14.el6.x86_64
xml|xmllint --shell - <<< $(echo 'cat /')
-:1: parser error : Start tag expected, '<' not found
EDIT: clustat -x
outputs an XML file and I want to parse out the active node. I don't think there is a way to do it without xpath so I created a temp xml file.
/usr/sbin/clustat -x > /tmp/clustat.xml ACTIVENODE=$(xmllint --shell /tmp/clustat.xml <<< `echo 'cat //group/@owner'`|grep -v "^/ >"|cut -d= -f2|tr -d \")
I had a similar issue where I had to unzip an XML file then feed it to xmllint. The key is the "-" option which tells xmllint to read from stdin.
For example:
$ bzip2 -dc dierehabilitati00delagoog_meta.xml.bz2 | xmllint --format
would fail giving the "usage" for xmllint. Adding "-" worked:
$ bzip2 -dc dierehabilitati00delagoog_meta.xml.bz2 | xmllint --format - <?xml version="1.0"?> <metadata> <title>Die Rehabilitation im Strafrecht</title> <creator>Ernst Delaquis</creator> <mediatype>texts</mediatype> <collection>americana</collection> </metadata>
Hope this helps.
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