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119 lines
3.3 KiB
Markdown
119 lines
3.3 KiB
Markdown
# Scheduled Tasks
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Scheduled tasks are used to set up tasks that execute at specified times, such as scheduled backups, scheduled script execution, etc.
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## Task List
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Go to the **Tasks** page, which displays the scheduled task list by default.
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The list displays the following information:
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- **Task Name**: Task name
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- **Task Type**: Shell/Backup, etc.
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- **Enabled**: Whether enabled
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- **Task Schedule**: Execution schedule
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- **Created At**: Creation time
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- **Last Updated**: Last execution time
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- **Actions**: Edit, execute, delete, etc.
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## Create Task
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Click the **Create Task** button to create a new scheduled task.
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### Task Types
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| Type | Description |
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|-----------------|-----------------------------------|
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| Shell | Execute Shell commands or scripts |
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| Backup Website | Scheduled backup of website files |
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| Backup Database | Scheduled backup of database |
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| Log Rotation | Scheduled rotation of log files |
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### Execution Schedule
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Multiple schedule settings are supported:
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- **Every Minute**: Execute once every minute
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- **Every Hour**: Execute once every hour
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- **Every Day**: Execute at a specified time each day
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- **Every Week**: Execute on specified day and time each week
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- **Every Month**: Execute on specified date and time each month
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- **Custom**: Use Cron expression
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### Cron Expression
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Cron expression format: `minute hour day month weekday`
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```
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* * * * *
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│ │ │ │ │
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│ │ │ │ └── Day of week (0-7, both 0 and 7 are Sunday)
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│ │ │ └─────── Month (1-12)
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│ │ └──────────── Day of month (1-31)
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│ └───────────────── Hour (0-23)
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└────────────────────── Minute (0-59)
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```
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Common examples:
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| Expression | Description |
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|---------------|--------------------------------------|
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| `0 2 * * *` | Every day at 2 AM |
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| `0 */6 * * *` | Every 6 hours |
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| `0 0 * * 0` | Every Sunday at midnight |
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| `0 0 1 * *` | First day of every month at midnight |
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| `*/5 * * * *` | Every 5 minutes |
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## Shell Task Examples
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### Clean Temporary Files
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```bash
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find /tmp -type f -mtime +7 -delete
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```
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### Restart Service
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```bash
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systemctl restart nginx
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```
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### Sync Time
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```bash
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ntpdate ntp.aliyun.com
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```
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## Task Operations
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### Enable/Disable
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Control whether the task is enabled via the switch. Disabled tasks will not execute.
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### Execute Immediately
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Click the **Run** button to execute the task immediately without waiting for the scheduled time.
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### View Logs
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Click the **Logs** button to view the task execution logs.
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### Edit Task
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Click the **Edit** button to modify the task configuration.
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### Delete Task
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Click the **Delete** button to delete the task.
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## Notes
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1. Task execution time is based on the server timezone
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2. Long-running tasks may affect the next execution
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3. It is recommended to set up notification reminders for important tasks
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4. Regularly check task execution status
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