docs: def show_env(environment):
      """ Show the commands for a given environment. """
      if not environment:
          print("You need to supply an environment name")
          return
  
      parser = read_config()
  
      try:
          commands = parser.get(environment, "cmd").split("\n")
  
      except KeyError:
          print("Unknown environment type '%s'" % environment)
          return
  
      print("Environment: %s\n" % environment)
  
      for cmd in commands:
          print(cmd)