# 操作

(sudo) 指以何用户身份运行

## 间隔时间任务

Github Action验证过的：

# 参考资料

## Scheduling tasks with Cron

Cron is a tool for configuring scheduled tasks on Unix systems. It is used to schedule commands or scripts to run periodically and at fixed intervals. Tasks range from backing up the user’s home folders every day at midnight, to logging CPU information every hour.

The command crontab (cron table) is used to edit the list of scheduled tasks in operation, and is done on a per-user basis; each user (including root) has their own crontab.

### Cron GUI

A graphical application for Cron is available by installing the gnome-schedule package:

You can then launch the program Scheduled Tasks from the main menu.

### Editing crontab

Run crontab with the -e flag to edit the cron table:

#### Select an editor

The first time you run crontab you’ll be prompted to select an editor; if you are not sure which one to use, choose nano by pressing Enter.

The layout for a cron entry is made up of six components: minute, hour, day of month, month of year, day of week, and the command to be executed.

For example:

This cron entry would run the backup.sh script every day at midnight.

#### View scheduled tasks

View your currently saved scheduled tasks with:

#### Run a task on reboot

To run a command every time the Raspberry Pi starts up, write @reboot instead of the time and date. For example:

This will run your Python script every time the Raspberry Pi reboots. If you want your command to be run in the background while the Raspberry Pi continues starting up, add a space and & at the end of the line, like this:

and & at the end of the line, like this:

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