{
  "compress" : [
    {
      "source" : "./afile.txt",
      "target" : "./afile.txt.bz2" 
      "mode" : "gzip"
    }  
  ],
  
  "uncompress" : [
    {
      "source" : "./afile.txt.bz2",
      "target" : "./afile.txt",      
    }  
  ]
}