augtool not saving the XML file to the disk

I am following the following link https://twiki.cern.ch/twiki/bin/view/Main/TerjeAndersenAugeas to use Augeas to parse a XML file. [root@devopsdev manifests]# /opt/puppet/bin/augtool --noload --noautoload --echo augtool> set /augeas/load/xml/lens "Xml.lns" augtool> set /augeas/load/xml/incl "/local/mnt/workspace/Book.xml" augtool> load augtool>set Book[BOOKNAME/#text = \"Oracle 12c\"]/AUTHOR/#text 'Richard Gosling' augtool> set Book[BOOKNAME/#text = \"Oracle 12c\"]/ISBN/#text '0-07-913702-4' augtool> save augtool> print /files /files /files/local /files/local/mnt /files/local/mnt/workspace /files/local/mnt/workspace/Book.xml /files/local/mnt/workspace/Book.xml/Book /files/local/mnt/workspace/Book.xml/Book/#text = "\n" /files/local/mnt/workspace/Book.xml/Book/BOOKNAME /files/local/mnt/workspace/Book.xml/Book/BOOKNAME/#text = "Oracle 12c" /files/local/mnt/workspace/Book.xml/Book/AUTHOR /files/Book[1]/AUTHOR/#text = "Richard Gosling" /files/Book[2] /files/Book[2]/ISBN /files/Book[2]/ISBN/#text = "0-07-913702-4" If I cat the xml I dont see the new changes: [root@devopsdev manifests]# cat /local/mnt/workspace/Book.xml Oracle 12c I am using RHEL and puppet 3.7.2 [root@devopsdev manifests]# cat /etc/release Red Hat Enterprise Linux Server release 6.6 (Santiago) [root@devopsdev manifests]# puppet --version 3.7.4 (Puppet Enterprise 3.7.2) Thanks in advance