anchor.diff:  EOF
   ----
   
  +.build the rpm
   ----
   tan@pavilion:~/sources/cautious-potato$ rpmbuild -ba hello_world.spec
   Processing files: hello_world-1.0.0-1.x86_64
  
positive.code: [sudo] password for tan:
  rpm: RPM should not be used directly install RPM packages, use Alien instead!
  rpm: However assuming you know what you are doing...
  this is the pre-install sh commands
  this is the post-install sh commans
  ----
  
  .check
  
negative.code: project, including configuration, build, internationalization, help files, etc.
  
  %pre
   echo "this is the pre-install sh command"
   mkdir -p /opt/hello_world/
  
  %post
   echo "this is the post-install sh command"
  
  %files
  
  