Execute a command that gives the hard disk memory used on the host machine

{
  "id": "81",
  "name": "Execute a command that gives the hard disk memory used on the host machine",
  "nodes": [
    {
      "name": "Execute Command",
      "type": "n8n-nodes-base.executeCommand",
      "position": [
        670,
        300
      ],
      "parameters": {
        "command": "df -k / | tail -1 | awk '{print $5}'"
      },
      "typeVersion": 1
    },
    {
      "name": "Cron",
      "type": "n8n-nodes-base.cron",
      "position": [
        470,
        300
      ],
      "parameters": {
        "triggerTimes": {
          "item": [
            {
              "hour": 9
            },
            {
              "hour": 16
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "name": "IF",
      "type": "n8n-nodes-base.if",
      "position": [
        870,
        300
      ],
      "parameters": {
        "conditions": {
          "number": [
            {
              "value1": "={{parseInt($node[\"Execute Command\"].json[\"st...