docs: def get(**kwargs):
      '''
      Return system rc configuration variables
  
      CLI Example:
  
       .. code-block:: bash
  
           salt '*' sysrc.get includeDefaults=True
      '''
  
      cmd = 'sysrc -v'
  
      if 'file' in kwargs:
          cmd += ' -f '+kwargs['file']
  
      if 'jail' in kwargs:
          cmd += ' -j '+kwargs['jail']
  
      if 'name' in kwargs:
          cmd += ' '+kwargs['name']
      elif kwargs.get('includeDefaults', False):
          cmd += ' -A'
      else:
          cmd += ' -a'
  
      sysrcs = __salt__['cmd.run'](cmd)
      if "sysrc: unknown variable" in sysrcs:
          # raise CommandExecutionError(sysrcs)
          return None
  
      ret = {}
      for sysrc in sysrcs.split("\n"):
          line_components = sysrc.split(': ')
          rcfile = line_components[0]
          if len(line_components) > 2:
              var = line_components[1]
              val = line_components[2]
          else:
              var = line_components[1].rstrip(':')
              val = ''
          if rcfile not in ret:
              ret[rcfile] = {}
          ret[rcfile][var] = val
      return ret