backy/docs/content/config/command-lists.md

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---
title: "Command Lists"
weight: 2
description: >
This page tells you how to get started with Backy.
---
Command lists are for executing commands in sequence and getting notifications from them.
The top-level object key can be anything you want but not the same as another.
Lists can go in a separate file. Command lists should be in a separate file if:
1. key 'cmd-lists.file' is found
2. hosts.yml or hosts.yaml is found in the same directory as the backy config file
```yaml
test2:
name: test2
order:
- test
- test2
notifications:
- mail.prod-email
- matrix.sysadmin
cron: "0 * * * * *"
```
| key | description | type | required
| --- | --- | --- | --- |
| `order` | Defines the sequence of commands to execute | `[]string` | yes |
| `getOutput` | Command(s) output is in the notification(s) | `bool` | no |
| `notifications` | The notification service(s) and ID(s) to use on success and failure. Must be *`service.id`*. See the [notifications documentation page](/config/notifications/) for more | `[]string` | no |
| `name` | Optional name of the list | `string` | no |
| `cron` | Time at which to schedule the list. Only has affect when cron subcommand is run. | `string` | no |
### Order
The order is an array of commands to execute in order. Each command must be defined.
```yaml
order:
- cmd-1
- cmd-2
```
### getOutput
Get command output when a notification is sent.
Is not required. Can be `true` or `false`. Default is `false`.
### Notifications
An array of notification IDs to use on success and failure. Must match any of the `notifications` object map keys.
### Name
Name is optional. If name is not defined, name will be the object's map key.
### Cron mode
Backy also has a cron mode, so one can run `backy cron` and start a process that schedules jobs to run at times defined in the configuration file.
Adding `cron: 0 0 1 * * *` to a `cmd-lists` object will schedule the list at 1 in the morning. See [https://crontab.guru/](https://crontab.guru/) for reference.
{{% notice tip %}}
Note: Backy uses the second field of cron, so add anything except * to the beginning of a regular cron expression.
{{% /notice %}}
```yaml
cmd-lists:
  docker-container-backup: # this can be any name you want
    # all commands have to be defined
    order:
      - stop-docker-container
      - backup-docker-container-script
      - shell-cmd
      - hostname
      - start-docker-container
    notifications:
      - matrix.id
    name: backup-some-container
    cron: "0 0 1 * * *"
  hostname:
    name: hostname
    order:
      - hostname
    notifications:
    - mail.prod-email
```