#+begin_src prep
#@ ```
#@ rm -f /tmp/hello && touch /tmp/hello
#@ ```
#+end_src
#+begin_src cfengine3
body agent control
{
  inform => "true";
}

bundle agent __main__
{
  files:
    "/tmp/hello"
      content => "Hello, CFEngine",
      if => fileexists("/tmp/hello");
}

#+end_src
#+begin_src example_output
#@ ```
#@    info: Updated file '/tmp/hello' with content 'Hello, CFEngine'
#@ ```
#+end_src
