running on Ubuntu: the template is stored in conf directory in a flow.xml.gz file -- try to open it in vim, then you can search for your template name, perhaps you can make a script to extract template, however it seems that it is better to use the web interface where you can download to a xml file ... View more

in which way are they stored - I did not see any templates directory after creating a test template - I can still find the template in NiFi, however it is not stored under conf, so perhaps you have a different setup? ... View more