code: def cli(ctx, pattern):
      
      matches = utils.grep_commands(pattern)
      if matches:
          for cmd, desc in matches:
              click.secho("$ {} :: {}".format(cmd, desc), fg='green')
      elif matches == []:
          click.echo('No saved commands matches the pattern {}'.format(pattern))
      else:
          click.echo('No commands to show. Add one by `keep new`.')
docs: Searches for a saved command.