reset

raw details (from release v2.2.3):

{
  "name": "reset",
  "properties": {
    "short": "r",
    "long": "reset",
    "takes_value": "false",
    "help": "\n                    \"Reset the ledger to genesis if it exists. By default the validator will \\\n                     resume an existing ledger (if present)\",\n                "
  },
  "isDeprecated": false
}